A common way to convey that a character is either really strange or has either paranoid or schizophrenic tendencies (or both) is to make them an insomniac. Whether only during times of great stress or as a chronic disorder (obviously a case of Truth in Television) expect these characters to be cranky, moody, mistrusting and sometimes even violent.
See also Past Experience Nightmare. Waking up from one may cause a sleepless night; waking up from one many, many, many nights may lead to this in its milder forms, since the character gets some sleep. Characters for whom not sleeping is normal are The Sleepless, though it can overlap with this trope, particularly when they're obsessive. See Insomnia Episode when the character becomes insomniac just temporarily. The Night Owl might be an insomniac, but it's more likely that they just enjoy evenings.
Compare/contrast The Sleepless for characters who cannot sleep or physically don't need any sleep for some reason, often with signs of the supernatural. Also contrast to Sleepy Depressive for characters who are stressed, depressed, or otherwise mentally unsound but have the opposite problem of sleeping too much.
- L from Death Note gets far less sleep than should be healthy for him - though like his eating habits, it doesn't seem to have any negative effect. His insomnia is arguably one of the reasons why he's the best three detectives in the world at the same time.
- Possibly as a callback to the above, in Bakuman。 (by the same scenarist/artist duo) Mashiro often forgoes sleep for days on end in order to work. It's mostly because he's a Determinator, though it is also often Played for Laughs (his face gets zombie-like) and shown to have realistic consequences on his health.
- Gaara from Naruto, who remains awake to prevent a forcible takeover by the monster inside him. He seems to spend most of the time a normal person would spend sleeping just standing still, likely to get physical rest (and possibly trying some form of meditation to make up for the loss of mental rest). This is clearly one of the many things that has a detrimental effect on Gaara's sanity.
- Kaoru of ...Virgin Love, thanks to being perpetually haunted by Past Experience Nigthmares of his childhood. He discovers being in a stable relationship combats this.
- Beet in Beet the Vandel Buster stays awake for 72 hours, then sleeps for 24. Since the series is on indefinite Series Hiatus due to the illustrator being ill for five years and counting, and the writer's inability to find a replacement, we may never know why his sleep pattern is so unique.
- Syrus/Sho for a while in Yu-Gi-Oh! GX when he's obsessed with finding the lost Judai/Jaden. It makes him a bit more impulsive and he does suffer a Heroic RRoD by the end.
- Seto Kaiba in the original Yu-Gi-Oh! anime is implied to forgo sleep in favor of translating The Winged Dragon Of Ra card's hieroglyphic text.
- Casca from Berserk shows signs of sleep deprivation after the Eclipse, another realistic after effect of those who were a victim of rape like she.
- Wakamatsu from Monthly Girls' Nozaki-kun suffers from chronic insomnia, and Seo-related stress makes it worse. Ironically, 'Lorelei', her singing voice, can send him off to sleep in seconds... not that he knows it's her.
- According to Word of God, Levi of Attack on Titan only gets 2-3 hours of sleep a night.
- A Running Gag with Kagami in Kuroko no Basuke. Whenever a tournament is about to start, he's too nervous to sleep the night before the tournament, which the characters can immediately tell by his tired red eyes.
- Rorschach from the graphic novel Watchmen goes long hours without sleep. Of course, Rorschach is a thoroughbred Determinator.
- Judge Dredd: Dredd prefers 10 minutes on a sleep machine to actually sleeping in a bed — less time for criminals to get away with the lawlessness! It has been mentioned that the sleep machines do not completely duplicate the effects of natural sleep, and Judges are required to spend a few hours doing it the old-fashioned way now and then. Of course, as obsessed as Dredd is with his work, he would skip that too were it not for his boss repeatedly ordering him to get some proper sleep.
- The Joker in Batman comics is sometimes portrayed as an insomniac. This is directly addressed in The Dark Knight Returns.
- Johnny the Homicidal Maniac has a distaste for sleep, as eloquently demonstrated by the above quote. It doesn't seem to make him anything other than crazier. This is also Author Appeal in his case, as Jhonen Vasquez is a longtime insomniac and named his blog Question Sleep as a reference to this.
- Superman villain Riot couldn't sleep ever since he was mutated; the effects of sleep deprivation drove him insane.
- In the Postboot Legion of Super-Heroes, Nura Nal starts out as a Fainting Seer, since she dreams of things to come and visions can take her at any time, resulting in narcolepsy. The Legion kind of laughs her off as an applicant, except for Star Boy, who winds up dating her. During a time skip, however, she meets up with an armada of a Proud Warrior Race whose home planet is permanently dark, who give her Training from Hell that turns her unreliable visions and narcolepsy into pinpoint tactical precognition and not sleeping ever again.
- Irredeemable: Max Damage is one of these out of necessity: the effectiveness of his powers are directly proportional to how long he's been awake. Unfortunately, he isn't immune to the effects of sleep deprivation, and is depicted as suffering because of it.
- The titular Mister X is a Mad Architect who takes a variety of homemade drugs to stay awake for months on end so he can attempt to fix the 'psychetecture' of a city he may or may not have designed. The city itself may also cause sleep disorders in its inhabitants.
Mister X: So much work to do, so little time.
- The monster Gulgol never sleeps nor needs it. Gulgol is the one being in all creation that the Dream Demon Nightmare, a recurring Doctor Strange foe, fears more than any other because he is utterly immune to Nightmare's Dream Weaver powers. Gulgol never dreams.
- Considering The Sandman focuses on the lord of the Dream world, it's unsurprising that various forms of this crop up from time to time. In the very first issue, Dream's imprisonment caused one shellshocked soldier in the First World War to eventually commit suicide because he couldn't sleep.
- When Miles Morales got home after a superhero night, he's usually still with all the adrenaline, and can't get the required sleep before class.
- Rarity in The Powers of Harmony: something has made it hard, near-impossible at times, to sleep. Because of this, her magic font is never fully recharged, always putting her health at risk. And it's only gotten worse since she gained the Element of Generosity's Foresight ability. It eventually turns out that this was just one more part of Harmony's Long Game.
- Whenever the Tenth Doctor's sleeping habits are brought up in Children of Time, it's because he's not sleeping. He consistently blames it on several centuries of collecting personal demons and the Past Experience Nightmares they produce.
- Harry in Harry Potter and the Nightmares of Futures Past uses this to his advantage. Once he wakes up from a nightmare he uses the rest of the night for reading, to explain why he knows more than the average Hogwarts student. This doesn't entirely succeed in deflecting unwanted attention, however, because people start wondering why an eleven year-old boy is having violent nightmares and showing signs of post-traumatic stress disorder.
- In the Worm x Dishonored crossover fanfic, A Change of Pace, Taylor in Victoria's Interlude, after having gone three days in search of more bone charms.
- Eli of the Lightwaves is The Insomniac because of existential worries - when he feels better about his life, he gets to sleep better, but when he's down in the dumps, there's no sleep for him.
- Cassie from POP Culture is an overworked musician who ends up an insomniac. To help her, her managers give her drugs. This soon turns into a full-blown addiction.
- In To A Merry Christmas, Belle finds Aurora up late at night. Later on, Aurora tells Belle that she can't stand sleeping alone because of her experiences with Maleficent.
- At the start of Moving, Karen can't sleep because her stressed out mind becomes overactive at night. She keeps on remembering bad memories.
- Kurenai of Team 8 spends half her nights reading due to a tragedy that struck her team.
- In Chemistry, Cadance occasionally has insomnia because of the medicine she takes. This comes up in the third chapter when she can't go to sleep.
- Gustav Graves from Die Another Day as a result of gene therapy used to change his look. He seems pretty unaffected on the whole, though he claims to need to spend a few hours using a "dream machine" each day to stay sane.
- The narrator from Fight Club. When he thinks he's sleeping, he becomes Tyler Durden.
- Detective Will Dormer in the film Insomnia, whose judgment and overall mental state decline severely over the course of the movie due to an extreme case of insomnia after he travels to Alaska during the time of year when the sun is up for months at a time. He's juggling the guilt of both Framing the Guilty Party during his career and his (perhaps) accidental shooting of his partner who was going to testify against him.
- Jonas Engström in the original Norwegian movie.
- Trevor Reznik from The Machinist, who goes for a year without sleep. The only time he goes to sleep in the movie is when he goes to the police station and reports the hit-and-run he was involved in a year ago, which kickstarted his guilt-ridden insomnia.
- Jordan from Real Genius, as part of her hyperactivity disorder, never needs to sleep. There doesn't seem to be any negative side effects... aside from her being a Genki Girl.
- Samara Morgan from The Ring: "She never sleeps. The horses keep her up at night." At first, she and her adoptive parents believed that the whinnying and thrashing of the horses in the stable kept her awake, when in reality she was the one driving them mad with her uncontrollable Psychic Powers. Surveillance tapes from a mental facility proved she didn't sleep at all, and at the end the phrase "She never sleeps" is revealed to refer to how her spirit will never rest, forever (and deliberately) spreading the deadly curse through the Video Tape.
- Travis Bickle from Taxi Driver works at night to cope with his chronic insomnia.
- In Iron Man 3, Tony Stark becomes an insomniac due to massive battle-induced PTSD. The result is that while he's awake, he builds a whole army of Iron Man suits that come in handy in the final battle.
- Jeff Megall from Thank You for Smoking is asked when he plans to sleep during a late night phone call. His answer after thinking about it is "Sunday".
- A Curious Conjunction of Coincidences: All three protagonists suffer from sleep deprivation for various reasons, and the mistakes they make are a direct result of this.
- Mariel of Redwall, Gabool the Wild starts having prophetic dreams that turn him into a completely insane insomniac.
- As does the aquaphobic Queen Tsarmina Greeneyes, as the good guys set up a dam to flood her and her minions out of Castle Kotir and she constantly hears dripping water.
- Sherlock Holmes frequently goes for days without sleep when captivated by a problem. And it's hinted he has an irregular sleep cycle even when not on a case: Watson mentions that he often stays up all night doing chemical experiments, and annoys the landlady with his "addiction to music at strange hours" (presumably meaning he likes to play the violin at 2 a.m.).
- Ralph Roberts from Insomnia, at least in the beginning. Later, it turns out that his insomnia allows him to see the aura of people as well as higher powers that influence the world.
- Colt Regan is a realistic Insomniac, partially because... you know... Coffee
- Anton Vowl from A Void is an insomniac with no clear reason as to why. He just has it and it slowly drives him slightly insane, which is justified.
- In the later books of The Black Company, Tobo deliberately refuses to sleep because his mother's ghost guilt trips him in his dreams. This gradually turns him Ax-Crazy. With Great Power Comes Great Insanity also helped the process.
- The In Death series mixes Determinators with realistic effects depending on the seriousness of the situation. Eve Dallas is Determinator but frequently experiences realistic consequences, and other characters will note that she's getting slower, edgier, and even getting sick. Roarke, though he pulls a sleepless routine less often, is even better at it than Eve, and is closer to a pure Determinator.
- In Tanith Lee's Companions on the Road, the main character is in danger from ghosts that kill in dreams, and so does everything possible to stay awake, including using drugs. After a few days, he's in terrible shape, exhausted and thinking confusedly, though not delusional.
- Alonso Quijano, as described in Part I Chapter I: led by his obsession to read chivalry books, he sleeps less and less while reading more and more and that sends him over the edge. After that, in various parts of the novel, Don Quixote is seen continuously staying awake, thinking of his lady Dulcinea del Toboso (that does not exist), only because he has read that is what true knights do!
" In short, he became so absorbed in his books that he spent his nights from sunset to sunrise, and his days from dawn to dark, poring over them; and what with little sleep and much reading his brains got so dry that he lost his wits"
- In Robert E. Howard's "The Shadow Kingdom", Kull spends a night like this.
There was no sleep for Kull that night, for it was nearly dawn and he spent the rest of the night hours pacing the throne-room, and pondering over what had passed.
- The fourth book of the The Dresden Files opens with Harry evidently suffering from the occasional bout of insomnia. It's self-induced, however, in his attempts to find a cure for his girlfriend's recent partial vampirification.
- Nancy Kress's Beggars in Spain and its sequels revolve around the Sleepless, Designer Babies engineered with this as an explicit superpower.
- Evan Tanner in Lawrence Block's series beginning with The Thief Who Couldn't Sleep, due to a brain injury he suffered in the Korean War. In a later novel a mad scientist cryogenically freezes him, forcing him to sleep for years.
- The Wild Cards series is home to Croyd "The Sleeper" Cranson, whose powers let him stay awake for weeks or months at a time, but then he hibernates, and wakes up in a new form with new powers. This process mimics the Superpower Russian Roulette that gave people their powers in the first place, leading to his quite justified fear of dying in his sleep. So, when he starts getting tired, he resorts to drugs to keep himself awake past "bedtime", turning him into a paranoid wreck.
- While teacher's behaviour in The Fire-Us Trilogy is obsessive (she spends most of the night writing in her Great Big Book of Everything, recording the dreams she and the other children have and pasting in whatever writing and pictures she can find, or forgetting that she wrote X message then "discovering" it and interpreting its signs) it leaves her exhausted and is part of her own personal brand of insanity.
- Star Wars Legends:
- Matt Stover's novelization of Revenge of the Sith reveals that after he has his nightmare of Padmé dying in childbirth, Anakin Skywalker swears off sleep and uses the Force to sustain himself. No wonder the guy's about to go Sith...
The force could keep him upright, keep him moving, keep him thinking, but it couldn't give him rest. Not that he wanted rest. Rest might bring sleep.
What sleep might bring, he could not bear to know.
- In Dark LordThe Rise of Darth Vader, set several weeks after Revenge of the Sith, Darth Vader is still incapable of falling asleep; his new cyborg suit won't allow him any rest, especially since his Vader Breath is harsh on both his damaged throat and his enhanced hearing. And what sleep he is able to get is marred by horrible nightmares. Darth Sidious, meanwhile, swore off sleep long ago, after killing his own master while he slept. He relies on The Dark Side to sustain himself.
- Darth Bane: Path of Destruction details that once Darth Bane grew in power of the dark side, he was able to give up sleep, relying only on a couple of hours of meditation a day to sustain himself.
- Matt Stover's novelization of Revenge of the Sith reveals that after he has his nightmare of Padmé dying in childbirth, Anakin Skywalker swears off sleep and uses the Force to sustain himself. No wonder the guy's about to go Sith...
- Lord Meren, from Lynda Robinson's Ancient Egypt mystery novels, due to the chronic stress of being the Pharaoh's spymaster. Once his son got him to take up juggling, a hobby that forced him to fully focus his attention on a task unrelated to crime or security, he was able to step back from his worries and get some proper rest.
- In the Left Behind series: before being indwelt by Satan, people comment that Nicolae Carpathia. never seems to sleep as he is often too busy. After he is indwelt he never has to sleep at all and remains awake for 3 and 1/2 years.
- Chuck Palahniuk's early unpublished manuscript Insomnia, excerpts of which were salvaged for Fight Club, his first publication.
- A downplayed example in The Raven Cycle. Gansey and Ronan both suffer from insomnia and both deal with it in different ways, with Ronan either drinking or street racing and Gansey building his miniature city. This doesn't appear to have much of an effect on either of them, though Ronan's insomnia is plot-related—he has some incredibly dangerous dreams.
- In The Mysterious Benedict Society, when the children first meet Number Two, it's quipped that she "never sleeps." In actuality,, she does sleep, but only a very small amount, like maybe two-three hours a night. She has to compensate for this by eating a lot of snacks, which sometimes leaves her irritable if her blood sugar gets low. In the second book in the series, The Mysterious Benedict Society and the Perilous Journey, it becomes a key plot point. When she and Mr. Benedict are captured and handcuffed in place in a cave on an island, her near-constant wakefulness allows her to work away at the fastening pin on her handcuffs and free herself. Unfortunately, in order to do this, she has to keep hidden the fact that she requires extra food in order to properly maintain her mental state. By the time she actually escapes, she is a state of delirium and no use to anyone.
- In Shaman Blues, Witkacy rarely sleeps more than three hours at night, if he sleeps at all. It's implied that it's somehow a side effect of all the mind-altering substances he used to take, and it's bad enough that when he happens to catch five hours of sleep, he immediately suspects supernatural influence.
- Mary Richards in one episode of The Mary Tyler Moore Show.
- Patrick Jane on The Mentalist can't sleep without the aid of pills. It doesn't come up every episode and it's more an element of characterization than a disadvantage.
- Dr. House, towards the end of Season 5, after a coworker's death. He starts hallucinating and gradually losing his mind.
- Billy Flynn from Criminal Minds usually smokes meth to keep himself awake for days or even weeks so that he can perform several rapes and murders during planned blackouts.
- Dr. Franklin on Babylon 5, leading to his abuse of stimulants. His department is understaffed, and he refuses to delegate as much as he should, which leads to drug abuse.
- The protagonist of Sherlock doesn't have chronic insomnia, but tends to forgo sleep - and food - for days on end whenever he's working on a particularly difficult case; most notable in "The Blind Banker", where both he and John stay up all night trying to decipher The Book Cipher of the episode.
- Max, protagonist of Dark Angel, claims not to sleep. She uses the night for more important matters. Such as stealing. She has lied to explain coming in to work late as "I overslept" on one occasion.
- In Carnivàle Ben develops insomnia as a side effect of suffering from Dreaming of Things to Come, to the point where he starts seeing things while he's still awake.
- In Charite, Doctor Behring claims this is the reason for his Laudanum addiction, although it's rather a symptom than the cause for his psychological issues. His colleague Doctor Ehrlich notes that he hardly leaves the laboratory anymore during their research for a diphtheria vaccine.
- A Victim of the Week in Ghost Whisperer appears to be suffering from the Real Life disease fatal familial insomnia, and is being Driven to Suicide by the ghost of his father, who killed his wife while delusional and as a ghost watched his daughter succumb to the disease. However, it appears that the son never had it and the symptoms were the result of the father's extreme paranoia. "What's worse, insanity, then death, or just death?"
- Haywire in Prison Break has a mental imbalance that means he "doesn't sleep. Ever." Not the kind of cell mate you want if you're routinely sneaking out at night.
- Sam from Supernatural starts staying up all night in the first season when he's having nightmares about Jessica. In a much creepier example, he also stops sleeping entirely in season six, when he's lost his soul. And for several days in season seven, to the point where he nearly dies, after the hallucination of Lucifer left over from his time in hell becomes unbearable.
- Little Pete from The Adventures of Pete & Pete manages to get his friends to stay up for several days as a protest against early bedtimes. Pete almost manages to make it to eleven days.
- The X-Files:
- Fox Mulder is a well-known insomniac. We almost never see him sleeping, and when we do, he's usually in the throes of a nightmare.
- In the episode "The Sleepless", victims of a military experiment lose the ability to sleep, and subsequently gain the ability to induce hallucinations in others.
- In the Star Trek: The Original Series episode "The Paradise Syndrome", Spock goes without sleep for around two months. He states that Vulcans under enough stress can go without sleep and/or food for much longer than humans.
- Memorably terrifying Star Trek: The Next Generation episode "Night Terrors" used a variant of this trope: The Enterprise crew were able to sleep but not to dream, or more prosaically enter REM sleep, which was why it took some time for Dr Crusher to figure out why everyone was showing every symptom of sleep-deprivation except physical fatigue. The sole exception was Lt. Cmdr Troi, who was instead plagued with recurring nightmares. It turned out that these nightmares were actually a psychic Distress Call from someone (the crew never really learned who or what they were) who was caught in the same completely unrelated Negative Space Wedgie as the Enterprise, with everyone else's chronic insomnia being an accidental side effect.
- An early episode of Kyle XY deals with this, due to Kyle's inexperience with sleep.
- Victorious: In "A Christmas Tori," Beck becomes a Cloudcuckoolander due to a chirping cricket getting stuck in his RV. It gets worse when he starts drinking lots of coffee so he won't fall asleep in class.
- Dr. Rush on Stargate Universe is a chronic insomniac. A mixture of obsession and paranoia frequently drives him to go for days without sleeping, eating, or really doing anything except trying to fix Destiny. Subverted in that the lack of sleep actually makes him less adept and more prone to sloppy mistakes. His own Destiny-induced hallucinations eventually start calling him out on this fact.
- Brooklyn Nine-Nine: In "Unsolvable" Jake becomes obsessed with solving a cold case and stops sleeping.
Jake: I have not slept in, since I last saw you, many hours. Plus I think I'm hallucinating because I'm pretty sure I just heard your biceps mocking me.
Terry: No, that's possible. My biceps mock a lot of people.
- Most of Owl City music was written simply when Adam Young could not shut his mind off. "Fireflies" in particular is a sweet song about insomnia and the loss of childhood innocence.
Leave my door open just a crack
(Please take me away from here)
'Cause I feel like such an insomniac
(Please take me away from here)
Why do I tire of counting sheep
(Please take me away from here)
When I'm far too tired to fall asleep
- Emilie Autumn's "4 o'clock" is a song about how insomnia is slowly killing her, set to the tune of a lullaby.
Never let me sleep
I close my eyes and pray
For the garish light of day
Like a frightened child I run
From the sleep that never comes
- Delta Goodrem has "The Analyst," about the girl who can't sleep: she's too busy overanalyzing everything in her life.
Prepare yourselves to meet, the girl who cannot sleep
- "Sleepflower" by Manic Street Preachers is about insomnia
Endless hours in bed, no peace, in this mindNo one knows the hell where innocence dies
- Faithless has a song about this very trope called Insomnia.
- "Asleep or Awake" by Apoptygma Berzerk.
- "You Can't Walk In Your Sleep (If You Can't Sleep)" by The Go-Go's.
- City and Colour's album Bring Me Your Love has three songs that have the singer state he cannot sleep due to the troubles he is suffering in life: "The Death Of Me", "Sleeping Sickness", and "Constant Knot".
- The Barenaked Ladies song "Who Needs Sleep?" is all about insomnia — and references "a guy who's been awake since the Second World War."
- The Green Day album Insomniac was made when Billie Joe was suffering from major sleep deprivation. "Brain Stew/Jaded" on that album describes Billie Joe's sleepless woes.
- "Can't Get To Sleep At Night" by Donna Summer from I Remember Yesterday where the protagonist can't sleep because she keeps thinking of her former partner, despite being with somebody else.
- "I'm So Tired" by The Beatles from The White Album is literally about someone who is tired but can't sleep. Truth in Television for Lennon, since the meditation schedule under Maharishi Mahesh Yogi left him too keyed up to sleep at night.
- "Pennyroyal Tea" from Nirvana's In Utero:
I'm so tired I can't sleep
- Imagine Dragons has an insomniac guitarist, Wayne Sermon. The band consequently references sleepless nights in some of their songs-such as "Nothing Left to Say", which sounds like someone experiencing sleep deprivation due to introspective thoughts.
- The narrator of "I'll Sleep When I'm Dead" by Set It Off can't sleep and is going crazy.
Cause I'm stuck self-torturing
My meds are failing me
Internal clock in smithereens
Can't fix this, I'm hopeless
My eyes are stapled open wide
As I lay down on my side
- The man sung about in "My Manic And I" by Laura Marling suffers from insomnia.
By one in the morning the day has not ended.By two he is scared that sleep is no friend.And by four he will drink, but he cannot feel it.Sleep will not come because sleep does not will it.
- In "Staying Up" by The Neighbourhood, the singer suffers from insomnia out of a combination of bad dreams and the sense that there's something out there.
- "Shampain" by Marina & the Diamonds.
I wonder when the night will reach its end
The sleep is not my friend
- "Lover To Lover" by Florence + the Machine:
I've been losing sleep,
I've been keeping myself awake
- "I Can't Sleep" by Still Corners.
I haven't slept a while now
- Tessa Violet's "Bored" starts with:
It's 4 AM again
You think that I could sense a trend
I'm stayin' up too late just so I can stay awake
- William Shakespeare's Sonnets 27 and 28
- Caprice Coleman and Cedric Alexander, the C&C Wrestle Factory, according to their theme anyway.
"Seven ain't getting up early, ready for the grind. No alarm clock! Money on my mind."-"I don't eat, I don't sleep I just grind!"
- Sami Callihan became one due to him obsessing about not getting a shot at Johnny Gargano for the Open The Freedom Gate Championship Belt at Dragon Gate USA.
- Roppongi Vice stays up late partying, then they get up early for McDonald's breakfast.
- The Muppet Show: At the end of the Paul Williams episode, Waldorf claims to have insomnia, and that the Muppet Show is a good cure for it.
- A variation of this trope occurs in God of War: Kratos has been plagued by nightmares for ten years, which started when he was tricked by Ares into murdering his wife and child in a berserker rage. He serves the gods because he believes that when he has redeemed himself, they will rid him of the nightmares. They don't.
- Marius, the narrator of Diablo II, is haunted by dreams of the demons in Tristram. He understandably tries to avoid them by fighting sleep for days at a time. He only sleeps once in the cinematics, noting that it was the first time he slept in weeks, and that was only so Diablo/the Wanderer could send him a vision of Tal Rasha sealing Baal in his own body.
- In the Sega Dreamcast Action RPG Napple Tale, one of the Napple Town townsfolk, Alice, looks exhausted all the time because she is afraid of going to sleep. Fortunately she's sweet-tempered despite this.
- The "Strange New Powers" update to Don't Starve made Ms. Wickerbottom an insomniac, and unable to use sleeping items such as a tent or a bedroll to restore her Sanity Meter.
- Paya from The Legend of Zelda: Breath of the Wild spends so much time tending to both her own chores and the duties of her elderly grandmother, and then filling her diary after it all, that she is one of the few village-based human characters to sleep just a few hours in the early morning (not counting the various main quest characters and shopkeepers who are always awake so you aren't locked out of stuff you need at certain hours of the day).
- Tekla reveals herself to be one in Wolfenstein: The New Order when she wakes BJ up in the middle of the night and casually says she prefers not to sleep. She follows this up with a long, rambling, surprisingly philosophical monologue: if life and a "self" are the persistence of awareness, does sleeping mean you temporarily die, since you're unaware? Is the person who goes to sleep really the same person as the one who wakes up?
- Higurashi: When They Cry:
- Keiichi states a few times that this is becoming the case in Onikakushi-hen arc. He thought his best friends were trying to stalk and kill him. True to the trope's description, though, he's actually just a paranoid wreck and his fears are all in his head.
- It's implied that Rena and Shion also stopped sleeping when their paranoia reached its peak. Insomnia might be a symptom of Hinamizawa Syndrome.
- Katja, who has sleeping issues herself, mentions in Missing Stars that a large portion of the school population are some level of insomniac due to their mental health problems. Katja gives Erik advice that he should go for walks if he's feeling restless.
- RWBY's Blake Belladonna becomes this because she is the most concerned over what the Torchwick has in store for the White Fang. Ruby, Weiss, and Yang worry over Blake's lack of sleep or food.
- Grim Trigger: The first arc is the Insomniac Arc, which is named after Tage. If you click on the cabinets in book 1, he will say that they're mostly full of Melatonin bottles. And in that same part, if you click on his bed, he reveals that he hardly ever sleeps (but when he does, he sleepwalks, so it's still not exactly sleeping).
- Gunnerkrigg Court:
- Zimmy never sleeps. She also has a severe case of Power Incontinence, the only thing that prevents her hallucinations from becoming real rests with her friend Gamma, who acts a Power Nullifier. Unfortunately, Gamma does need sleep. Zimmy fits the personality profile of an insomniac, even though not sleeping is natural for her.
- While his brain was hijacked by one of Zimmy's hallucinations, Jack Hyland picked up her habit of never sleeping. Unfortunately he needs it and suffered the effects of deprivation.
- In The Order of the Stick, Vaarsuvius went several months without trancing (the elven equivalent of sleep) while at sea, which severely changed V's appearance, patience, social skills and (arguably) alignment. Due to a mixture of determination and terrifying nightmares of guilt, V defended this saying trancing isn't biologically necessary for elves. The veracity of this claim is dubious.
- Sniper Wolf from The Last Days of FOXHOUND can go on for long periods of time without sleep. She catches up on sleep by hibernating for a week or so every couple of years. Unfortunately, right before she hibernates, she would become disoriented and hallucinate various things.
- Princess November from No Rest for the Wicked is unable to sleep with the moon gone from the sky. Red has likely gone without sleep since getting eaten by the wolf.
- Fall from Parallel Dementia sometimes goes for several weeks without sleeping to try and avoid nightmares. This has led her to pass out and may be contributing to her hallucinations.
- In Questionable Content, Hannelore the resident "OCDelightful" cleanfreak occasionally goes days at a time without sleep, due either to her Monk-level need to clean things or some new medication she is taking. She seems to be a mash-up between goofy and realistic, as seen here.
- The nameless zombie narrator of Hanna Is Not a Boy's Name doesn't seem to sleep. He has been seen to spend the night reading in the one-room apartment of his Heterosexual Life Partner, the eponymous Hanna. So... sitting a couple feet away from Hanna's bed while Hanna sleeps. Awww.
- Homestuck: After the trolls' game of Sgrub began, Karkat Vantas barely slept at all in the three weeks the game took, according to Vriska. After that, he slept a grand total of once, during which time his dreamself was killed and he experienced things that put him off sleeping for a very long time, after which came several distractions.
- Jyrras from Dan and Mab's Furry Adventures has shown signs of sleep deprivation, which includes waving a knife in a dangerously random manner.
- Cubi start to lose the need to sleep as they age, which can appear as insomnia to the uninformed.
- CRFH's Roger can attend class, and successfully complete tests, in his sleep.
- In Endstone's Back Story, the Artifact of Doom preyed on Jon until he could not sleep.
- In Doc Rat, a one-time occurrence. when Doc fights a video game Zombie Apocalypse, it leads to some -- interesting consequences the next day.
- Dune from I Dont Want This Kind Of Hero, possibly due to being a Shell-Shocked Veteran. It's why he constantly has Exhausted Eye Bags from his second appearance onward.
- In Girl Genius, there is a special mental discipline that is used in Skifander to help people stay awake for multiple days. Gil misuses this massively during the timeskip, where he has stayed awake for months at a time for two and a half years. The only times the reader has seen him sleep, it was because he'd been knocked out. It clearly isn't very good for him, since his skin is now a dozen shades paler than it was before, he's got some rather dramatic bags under his (extremely bloodshot) eyes, and he's been in The Madness Place constantly for the whole time.
- In Nightmare Factory, this is part of why Emai gets stuck in Nightmare Factory; shes exhausted from not sleeping and stumbles over her words. She also rarely sleeps because she has stories stream through her head constantly, and if she sleeps, she may never know how they end.
- Schlock Mercenary: When Liz first gets on the Bristlecone, she freaks out and stops sleeping after she realizes that there's a chance she could die at any moment. Kath finally notices after a few days and forces her to get some rest.
Liz: If I sleep I might miss something.
- Shadows in lonelygirl15 are so devoted to their duty that they take drugs that remove the need to sleep. Unsurprisingly, they tend to die before the age of 30.
- Jay of Marble Hornets has a harder and harder time sleeping as the series goes on, which we know thanks to his Twitter as well as some rather impressive eyebags whenever he's on camera. It's unclear how much of this is (justified) paranoia and how much is the Operator's direct influence.
- The Nostalgia Critic is fine with naps, but has taken Nyquil and Vicodin together in order to get proper sleep. It's a miracle he hasn't died yet.
- 40 Winks is a song about someone who can't get to sleep.
- Avatar: The Last Airbender:
- In the "Nightmares and Daydreams" episode, Aang has a turn as a Goofy Insomniac — although he quickly degenerates to the more realistic variant. He begins to experience hallucinations, culminating in one where the Team Pets begin talking, then get into a fight that escalates into a samurai duel.
- In The Promise comic, Zuko has an insomnia caused by the stress of his new position and assassination attempts.
- On Code Lyoko, Jérémie has a tendency to be the Obsessive Insomniac. Of course, his enemy never sleeps at all, and his behavior is not unlike that of a normal computer programmer with a big project and an approaching deadline. Still, pulling it for about two years in a row cannot be healthy for a developing brain. Or a developing body. Kid's 12 at the opening of the show... he's likely stunted his growth permanently. Thank goodness it doesn't seem to have damaged anything.
- The Simpsons features a throwaway gag of Apu having worked a 96-hour-shift. At the end, "I apparently thought I was a hummingbird of some kind." He also tried to drink nectar out of Sanjay's head. This was explained in the comic books: during Homer's Mr. Plow days, his incompetence had left the Kwik-E-Mart doors blocked by snow, and Apu was trapped in the store with Snake, who had just tried to rob him.
- My Little Pony Friendship Is Magic:
- In the episode "Applebuck Season", Applejack becomes a Goofy Insomniac when she takes on the task of harvesting all the apples on her farm by herself and has to do favors for her friends as well. She snaps out of it at the end when she finally relents to Twilight Sparkle's advice to ask for some help.
- Twilight becomes an Obsessive Insomniac in "It's About Time" — she spends one straight week without sleep monitoring everything trying to catch the big disaster that her future self wanted to warn her about. Even Pinkie Pie is concerned. She also starts the episode as an Obsessive Insomniac, fretting over her schedule.
Twilight Sparkle: Frankly, I don't know how you can sleep at a time like this!
Spike: Three A.M.?
- In the episode of SpongeBob SquarePants, "Inspongeiac." Mr. Krabs falsely accuses SpongeBob of being an insomniac when he doesn't flip a Krabby Patty fully and uses a bit too much mustard.
- Dipper Pines from Gravity Falls can be this, as highlighted in the episode "Sock Opera." It's a trait he has in common with the Author of the Journals.
Mabel: Don't stay up all night, Dipper. Last time you got this sleep-deprived you tried to eat your own shirt.Dipper: (sucking on shirt, spits it out)
- The Dragons: Riders of Berk episode "The Longest Day" features the characters going on without sleep because of the annual midnight sun, a time where the sun does not set for 2 whole weeks. Each of the characters are shown to suffer a variety of symptoms brought on by this.
- Hiccup becomes careless with a slower reaction time.
- Astrid is overcome with euphoria, becoming obnoxiously optimistic and carelessly carefree.
- Snotlout suffers from severe mood swings, switching from laughing to crying to shouting in an instant.
- Fishlegs becomes increasingly paranoid of the others.
- Heather loses all sense of coordination, tripping on her own feet and spilling her water bucket trying to clean Windshear. She later starts losing focus, confusing Windshear with a rock.
- Ruffnut and Tuffnut are overcome by visual hallucination.
- Gothi spends her time "babbling" for hours, drawing in the sand with a blank stare.
- Aaron Burr was known for being this trope throughout his life; in college, he had regular 18-hour study sessions. In the military, he did whatever work needed doing at night. As a politician and campaign manager, he often forewent sleep in favor of getting more work done (to such an extent that it nearly killed him in 1800). Later, in his journal, he would claim that 2-3 hours of sleep was usually enough for him, expressing irritation when he started needing more in his old age.
- WWE CEO Vince McMahon is well-known for sleeping very little. According to wrestler Triple H (who is also Vince's son-in-law), Vince only gets about 2-3 hours of sleep a night before getting up and going back to work.
- Peter Tripp, a disc jockey who went for 8 days without sleep in 1959 as part of a wake-a-thon stunt. He suffered heavily from hallucinations during the experience and its been suggested that he was never quite the same after the experience, which might hint at permanent damage. A trippy experience. According to the Wikipedia article, for the last 66 hours of that marathon the observing scientists and doctors gave him drugs to help him stay awake! Yeesh, first do no harm? Were they away that day?
- Possibly Michael Jackson; his need for stronger anesthetics just to sleep may have caused his death. Ironically, the powerful drug that he was attempting to use is a poor choice as it only works for minutes at a time.
- As mentioned above, Fatal Familial Insomnia is a genetic disease which causes the breakdown of the mechanisms in the brain which allow sleep (meaning that falling asleep becomes entirely impossible), resulting in insanity followed shortly by death. It is a dominant and autosomal (meaning it affects men and women equally) trait, a person who possesses the trait has a 50% chance of passing it to their child, and it inevitably affects anyone who possesses the trait. There is currently no treatment or cure. Thankfully, it is incredibly rare, only affecting 50 known families worldwide. To make matters worse, it doesn't manifest until the patient is anywhere from 30 to 60 (average about 50), which gives the future patient time to have children before finding out that oops, they inherited that gene (and in women, childbirth can trigger it).
- Part of what causes meth addicts to be so paranoid is the days or weeks without sleep, due to being on such strong stimulants.
- And then there is those who suffer from Hypnophobia.
- Happens to many participants of NaNoWriMo.
- Full International Baccalaureate students don't usually sleep more than two hours on average until the weekend or long breaks. Eventually, some of them become accustomed to it.
- In some cases, people with post-traumatic stress disorder suffer from insomnia as part and parcel of the disease, especially in people with this disease who have nightmares about their traumatic experience. Alternatively, a person with PTSD could be lying down trying to sleep and then, BAM! they relive their traumatic experience and it takes a while for them to recover from this so they can sleep.
- There are countless examples of artists, song writers, painters and otherwise, who have had or do have sleeping problems, Emilie Autumn, Delta Goodrem, Michael Jackson and Owl City are a few famous examples.
- This is essentially the premise of many jams (particular game development jams). Rather ironically, people usually go into indie development to avoid crunchtime that usually comes in big studio environments.
- In 1965, Randy Gardner went 11 days without sleeping for a high school science project, having a doctor on hand to record his symptoms and general state of mind. The case study wound up being greatly quoted among the medical and psychological communities as an example of the effects of extreme sleep deprivation. It stands as the world record for longest time spent without sleep.
- Similarly to the above, The Guinness Book Of World Records no longer accepts or acknowledges attempts to break Gardner's record out of concern for the health of anyone who might try.
- Scientists have isolated a gene that allows for a shortened sleeping period, allowing a person to get by with just 3-5 hours of sleep a night, instead of the usual 7-9 hours, without any detrimental effects. Just like a normal person can't sleep much longer than 9 or 10 hours in most circumstances, though, a person with this gene can't sleep for 8 hours, giving the appearance of insomnia, event though they are perfectly healthy.
- Heath Ledger was suffering from this in the months leading up to his death. He said he'd get 2-3 hours of sleep a night. He was always thinking of what he could do for his next movie role and his desire to become a director. One could argue it was his sleep deprived state that led to his fatal accidental overdose of sleeping pills.
- Johannes Brahms suffered from this. He took frequent naps throughout the day and was typically moody. A lot of historical psychologists believe that he suffered from insomnia, or at least sleep deprivation. The song Nächtens implies that he may have also had frequent nightmares.
- According to his widow, Steve Irwin was a visionary workaholic who usually only slept around four hours a night. Shortly after they married, Steve would frequently do heavy construction work on the fledgling Australia Zoo from sunup until well after dark, rigging up spotlights so he could keep going. Later on, he'd get up to check on his zoo himself, even after gaining a staff numbering north of 200, and would work into the night on his future plans for the zoo. Even on family vacations, he'd still get up at the crack of dawn to go for walks and scope out places to see.
Now stop reading TV Tropes and get some sleep already, would you?!