'''[[WMG:If you were looking for the flash game, see ''VideoGame/DeepSleepTrilogy''.]]'''

->''"As far as he could remember, Sam slept through the night in deep content, if logs are contented."''
-->-- '''Creator/JRRTolkien''', ''[[Literature/TheLordOfTheRings The Fellowship of the Ring]]''

Sleep. Deep, profound, unwakeable sleep. Not imposed on the sleeper but springing from his own need for rest and recovery.

Sleep this heavy is often a consequence of PostVictoryCollapse, though exhaustion, illness, and recuperation can also produce it. (The HeavySleeper does this routinely). Usually the deep sleeper does not dream; indeed, the victim of RecurringDreams may attempt to exhaust himself in order to invoke this trope. Any InstantWakingSkills are usually nullified; it takes a ''lot'' to wake someone from this kind of sleep. This gives other characters freedom to act around him without worrying about his reaction, whether to move him, or to play pranks, or whatever. They might even plan or conduct the next plot event without him, because his need for sleep is greater than his need to be involved.

A HeroicBSOD is likely to cause this as well; compare AngstComa. Although "sleeping like the dead" is a common metaphor, a character so profoundly unconscious as to appear dead falls under FauxDeath. If the length is [[ExaggeratedTrope done hyperbolicly]], see AsleepForDays; Deep Sleep does not actually need to be prolonged, but can be.

Not to be confused with BigSleep, where the sleeper is ''actually dead''.

TruthInTelevision. Merges insensibly with unconsciousness, since the hallmark of true unconsciousness is inability to be woken.
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!!Examples:

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[[folder:Anime and Manga]]
* The third ''Anime/CyberCityOedo808'' OAV has [[spoiler: Benten's StarCrossedLover Remy]] falling into one of these ''and'' being placed inside a capsule [[spoiler: that Benten [[BurialInSpace shoots into space]] for good measure]], because [[spoiler: she's been turned into a vampire and there's no cure for it.]]
* The Pao Paos from ''Anime/DoraemonGreatAdventureInTheAntarcticKachiKochi'' (cuddly, bipedal elephant-like creatures) can instantly fall into a hibernated state once they're frozen, remaining in sleep mode until they're thawed out. One of the major Pao Paos named Mofusuke in particular displays the ability to remain asleep for ''100,000'' years in order to [[TheSlowPath rendezvous with Nobita in the future]].
* Teana of ''Anime/MagicalGirlLyricalNanohaStrikers'' falls into one after the events of Episode 8, sleeping through most of the day as her many nights of self-imposed TrainingFromHell finally catches up to her.
* William of ''Manga/MoriartyThePatriot'' is a known HeavySleeper who falls asleep when intellectually taxed and can't be woken by anything. Albert says his genius brain requires more energy than most people's, but Sherlock does not seem similarly afflicted (maybe it's [[FridgeLogic Sherlock's cocaine addiction?]]).
* [[spoiler: Yuki]] from ''Vampire Princess Yui'' (a spin-off of ''Manga/VampirePrincessMiyu'') willingly submerged herself in a magical lake and entered into one of these [[spoiler: so she and her human star crossed lover (Nagi's brother), her "bedmate", would stay together.]]
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[[folder:Audio Play]]
* ''AudioPlay/JanTenner'': Every few nights, BigBad Seytania needs to sleep. During this time, she is completely vulnerable and is physically incapable of awaking no matter what happens.
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[[folder:Comic Books]]
* In the first issue of ''ComicBook/{{The Sandman 1989}}'' Dream of the Endless is summoned and bound by a group of occultists, causing several people around the world to suffer a mysterious "sleeping sickness" for decades. Some remain in a deep sleep until he manages to break free decades later, others cannot sleep.
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[[folder:Fan Works]]
* ''Fanfic/AbraxasHrodvitnon'': [[Characters/AbraxasHrodvitnon San and Vivienne]] seem to fall into this in the aftermath of their first HeroicRROD, and it's even implied they entered a NearDeathExperience.
* ''Webcomic/DoraemonsFinalEpisode'', the infamous ''Manga/{{Doraemon}}'' webcomic that's rumored to be "the missing final episode" of the series (later proven to be a hoax, but a damn good one). In it, Doraemon falls into over three decades of sleep after his batteries run dry - replacing his batteries will result in complete erasure of Doraemon's memory, necessitating Nobita to work hard and push himself to succeed in the future, where three decades later he's a successful robotics expert capable of reviving his friend.
* ''Fanfic/LoveIsAFunnyThing'': Being Jem puts a strain on Jerrica. After concerts she can sleep for hours. One time in particular, she slept for three days straight.
* ''WebComic/PokemonFestivalOfChampions'': Eevee develops hypersomnia after being traded to Blue. It gets bad enough that a nurse tells Blue that there isn't any cure. Blue has to [[spoiler:enter Eevee's dreams]] in order to wake her up.
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[[folder:Film - Live Action]]
* Harpo in ''Film/ANightAtTheOpera'' is asleep in Groucho's steamer trunk in his tiny stateroom. As a crowd assembles and grows in the tiny, tiny room, Harpo is jostled around and over peoples' heads, never waking up (but still able to repeatedly signal via bulb horn for an extra hard boiled egg.)
* In ''Film/TheCabinetOfDrCaligari'', Caligari claims that Cesare has been asleep for the past twenty years. He wakes up several times over the course of the film, so it's quite possible that Caligari is lying. [[spoiler: And the whole film has an UnreliableNarrator in Francis, anyway.]]

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[[folder:Literature]]
* Sam in ''Literature/TheLordOfTheRings''. Not only does he sleep like a log in Tom Bombadil's, in Lothlórien, when the other hobbits are talking about sleeping in the tree platforms, he announces that once he gets to sleep, he won't wake up even if he falls out. (And the less that is said, the sooner he will nod off.)
** Éowyn is in this while Aragorn is [[HealingHands healing her]], unlike Merry.
* ''Literature/DawnOfWar'': In Chris Robeson's novel ''Dawn of War II'', when the two boy are exhausted the Blood Ravens carry them, and they do not wake even when the Blood Raven shoots off his gun next to them.
* In Creator/KWJeter's ''Literature/MorlockNight'', the narrator, when he wakes, finds that Dr. Ambrose and Miss Tafe have waited for him. He apologizes, but he had never had such a deep sleep.
* In Creator/JaneYolen and Creator/MidoriSnyder's ''Except The Queen'', Robin sleeps profoundly in Serana's house.
* In Angie Sage's ''Syren'', Literature/SeptimusHeap sleeps so deeply that he forgets Spyt Fire and all but panicks when he remembers.
* In Creator/GeneStrattonPorter's ''Literature/MichaelOHalloran'', Mickey is terrified by how deeply Peaches sleeps the night after he brings her home.
* Elizabeth Kerner's {{Literature/Tales Of Kolmar}} universe has the [[OurDragonsAreDifferent Kantri]] go into what's called a "Weh sleep" when they're seriously injured and need to heal, or when they're due to grow, as they grow in stages throughout their lengthy lives. In the latter case they have between a day's and an hour's warning, and then they start to tear away their own armored scales before falling asleep. Then their other scales fall off and soft new ones are exposed. Over a course of months or years they grow and harden while asleep. If they're almost finished, they can be woken by a good friend shouting their [[IKnowYourTrueName truename]], but if not... In ''The Lesser Kindred'', when the Kantri [[spoiler: have to evacuate their island]], Nikis is at a stage where it's impossible to wake her, and she has to be bodily carried away at great effort.
* In Creator/SeananMcGuire's ''Literature/VelveteenVs The Junior Super Patriots,'' Velma sleeps like this at a motel, through two wake-up calls, until the manager pounds on her door. Unusually, she does dream during it.
* In Elizabeth Marie Pope's ''Literature/ThePerilousGard'', when Kate arrives at the castle, she sleeps like the dead until the next afternoon.
* Early in ''[[Literature/TheColorOfDistance Through Alien Eyes]]'' the alien healer Unkatonen is heavily afflicted with greensickness from being on board a spaceship for too long, far from the variety of life he has a psychological need for. It has a drastic effect on his psyche, so he causes himself to go into a near-unwakeable sleep until he can leave the ship.
* Strongly implied in ''Literature/TheHitchhikersGuideToTheGalaxy''. After going through several pages of how "[Trillian, Ford and Zaphod] couldn't sleep" and why, all it says about Arthur Dent is:
--> Arthur slept. He was terribly tired.
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[[folder:Live-Action TV]]
* Elliot from ''Series/{{Scrubs}}'' is such a deep sleeper that JD could trip and fall over her, then leave for an hour, run back to bed and trip over more stuff and land next to Elliot just in time for the alarm to wake her up.
* ''Series/PunkyBrewster'': The episode "Passed Away At Punky's Place" had Punky and Cherie dealing with a narcoleptic whom they mistake as being dead at Henry's restaurant.
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[[folder:Theater]]
* In ''Theatre/OrpheusAPoeticDrama'', after her death by snake bite and subsequent Underworld arrival, Eurydice is in a state of sleep that Hades is unable to wake her from. Orpheus's music does the trick.
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[[folder:Video Games]]
* In ''VideoGame/{{Ib}}'', Garry comments throughout the game that he's feeling tired and at one point nearly falls asleep standing up. He gets his chance to sleep in a [[BonusDungeon bonus area,]] and he takes it. No chance of waking him up until you solve the room's puzzle.
* ''Franchise/KingdomHearts'':
** Happens to Kairi throughout most of [[VideoGame/KingdomHeartsI the first game]]. Normally, the bodies of people who get their hearts ripped out cease to exist (or become Nobodies, if their will is strong enough) as their hearts transform into Heartlesses, but because Kairi [[IncorruptiblePurePureness has no darkness in her heart]], she enters a state of faux-death. She's still alive, but can never be woken up unless her heart is returned. Same goes to the rest of the Princesses of Heart, who are confined in the chambers inside Hollow Bastion.
** In ''[[VideoGame/KingdomHeartsBirthBySleep Birth by Sleep]]'', Ventus defeats Vanitas, his darkness, but in the process shatters his heart to pieces. Much like Kairi in the first game, since there is no more darkness in his heart, he enters a state of faux-death. His heart seeks refuge in Sora as it heals itself, and, until it returns back to his body, he can never wake up.
** At the end of ''[[VideoGame/KingdomHearts3DDreamDropDistance Dream Drop Distance]]'', Master Xehanort overwhelms Sora's heart with darkness in order to make him a vessel, putting him in a deep sleep much like Ventus. Before he can shatter his heart, however, [[BigDamnHeroes Ventus steps in and shields Sora's heart]] until Riku can take over and expel the darkness.
* In ''VideoGame/RatchetAndClankSizeMatters'', the titular duo are forcibly separated by the technomites, with Clank being banished to a robot scrapyard. He soon find out from Skrunch that a comatose Ratchet is at the Medical Outpost Omega, where [[spoiler: his DNA is being taken]]. Clank is able to reach his friend and [[{{ConverseWithTheUnconscious}} talk him into waking him up]] by blaming himself for allowing [[spoiler: Luna]] to lure them into a trap while suspecting [[spoiler: "her"]].
* The plot of ''VideoGame/LittleDragonsCafe'' is kicked off by a brother and sister finding out that their mother is in a deep sleep and can't be woken up. A strange old man appears and tells them that the only way to wake her is to raise a dragon.
* ''VideoGame/TheLegendOfZeldaTheWindWaker'': After her granddaughter is kidnapped and her grandson goes on a deathly dangerous quest to save her, Link's grandmother falls into a deep sleep, literally worried sick. You can get her a fairy to cure her, after which she'll thank you with a homemade soup and decide to stay strong for Link's sake.
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[[folder:Visual Novels]]
* Throughout ''VisualNovel/DaughterForDessert'', the protagonist oversleeps several times when he's supposed to open the diner. Each time, it's because he's been pushing himself too hard and trying to do too much, and each time, Amanda and eventually Heidi can handle opening the diner instead.
* Just after the protagonist of ''VisualNovel/{{Melody}}'' gets his new king-sized bed, he spends a night with Isabella (if he's of her romantic path). Isabella, who has to go to work early, leaves while he's still asleep; he's tired from both the poor sleep on his previous bed and rolling around in the sheets the night before.
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[[folder:Webcomics]]
* ''Webcomic/ImpureBlood'': [[http://www.impurebloodwebcomic.com/Pages/Chapter003/ib017.html Roan is out cold after his escape]].
* ''WebComic/{{Precocious}}'':
** [[http://www.precociouscomic.com/archive/comic/2010/09/28 During break, offering such chances]]
** [[http://www.precociouscomic.com/archive/comic/2011/05/27 And again.]]
* ''WebComic/StandStillStaySilent'': [[http://sssscomic.com/comic.php?page=403 Lalli falls into one of these]] after overexerting his magic and losing his luonto.
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[[folder:WesternAnimation]]
* ''WesternAnimation/{{Futurama}}'': In "The Sting", Dr. Zoidberg warns Leela that eating three spoonfuls of space honey can put one into an eternal slumber, something she's tempted to do when an apparently dead Fry seems to be communicating with her in her dreams.
-->'''Fry:''' Listen to me! You don't want to lie in bed like a vegetable and do nothing the rest of your life! I've tried it! Bedsores hurt!
* In ''WesternAnimation/EdEddNEddy'', at a certain time of day, Jonny 2x4 will nap anywhere. When the Eds are taking care of trying to find the owner of a key, they find him and Plank sleeping. The Kankers arrive and he is tossed between the boys without waking up.
* In ''WesternAnimation/TheBearWhoSleptThroughChristmas'', all bears do this. Their whole society shuts down from December to spring so they can hibernate. We even see a montage at the start of the special showing various bears asleep during that time.
* ''WesternAnimation/ThePerilsOfPenelopePitstop'': How the aptly named Snoozy is allowed to take the wheel of Chuggaboom is a mystery even Scooby-Doo couldn't solve.
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