[[quoteright:224:[[Literature/TheMetamorphosis https://static.tvtropes.org/pmwiki/pub/images/metamorphosis_3.jpg]]]]
[[caption-width-right:224:And from here on in, his day just gets worse...]]
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->''"As Gregor Samsa awoke one morning from uneasy dreams he found himself transformed in his bed into a gigantic vermin."''
-->-- '''Creator/FranzKafka''', ''Literature/TheMetamorphosis''

It's morning; time for you to wake-up. You're still groggy, but you manage to roll out of bed, same as always. Maybe you feel weird; maybe your bedroom seems out of place somehow, but you're still too tired to think about it. So you stumble to the bathroom, splash some water in your face, blink the sleep from your eyes, [[MirrorReveal look at yourself in the mirror]]...

''[[DramaticGasp GASP!]]''

It's not ''your'' face in the mirror! At least, not the face you had last night. Maybe you've [[GenderBender switched sexes]]; maybe you've become [[AndThenJohnWasAZombie the one thing you hate most]]; maybe you've [[FreakyFridayFlip switched bodies with someone]] or [[Literature/TheMetamorphosis turned into a giant insect]], but whatever it is, you're not ''you'' anymore. You have been [[InvoluntaryShapeshifting transformed without your knowledge or consent]] and it happened while you were sleeping. You don't know how or why it happened; you [[SelfDemonstratingArticle just woke up that way]]!

This is extremely common in stories about involuntary shapeshifting, particularly if the writers are trying to shock the audience. ShapeshiftingExcludesClothing may supplement, to added shock effect. In situations where the source of the transformation is not rapidly explained, this overlaps with OntologicalMystery. Just don't be surprised if it turns out to be AllJustADream.

Likely also an ObliviousTransformation, if the transformed character takes a long time to notice something is amiss. Commonly leads to StumblingInTheNewForm. When this is discovered via a mirror, it's a MirrorReveal.


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!!Examples:

[[foldercontrol]]

[[folder:Anime & Manga]]
* LoserProtagonist Isao Komori wakes up in the body of school idol Mari Yosikawa in ''Manga/InsideMari'' with no idea how he got there and sets out to determine if it is a FreakyFridayFlip or a GrandTheftMe. The truth turns out to be both more prosaic and more appalling. [[spoiler: He's a split personality, spawned off when Mari fell in love with a socially outcast female classmate and couldn't reconcile it with the pressure of keeping up appearances.]]
* ''Manga/NyotaiKa'': Frustrated DoggedNiceGuy turned Internet {{GIRL}} Makoto wakes up female after a goddess turns him into an actual girl to teach him a lesson.
* ''Manga/AhMyGoddess'': Happens to Skuld when she wakes up in the morning (due to the failure of the Yggdrasil system) turned into an adult much to her shock (and delight).
* ''Manga/RuriDragon'' begins with Ruri waking up one morning to discover she's grown a pair of horns overnight. Very confused, she shows them to her mom, who offhandedly reveals that her father was a dragon.
[[/folder]]

[[folder:Fan Works]]
* ''Fanfic/AscendXTSGx'': As said in Chapter Two, this is the cause of Twilight's alicornification:
--> “All I know is that, after I finished chapter seven of ''A Troper's Guide To: Clichés'', I went to sleep and woke up with a pair of wings.”
* The ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' fanfic ''Fanfic/MyLittleMarriageMaryIsAMare'' has the titular (human) character experience this case ''twice''. First, her hair changes into a blue-white pattern. Second, she finds her body as that of a [[ForcedTransformation colorful, cartoonish pony]].
* In Chapter 36 of ''Fanfic/PokemonResetBloodlines'', Ash's Servine wakes up at Oak's ranch and discovers that she evolved to Serperior in the aftermath of the Saffron Gym battle. She's ''not'' happy about it, [[PowerAtAPrice when she discovers that her evolution caused her to lose her arms.]]
* ''Webcomic/FaithMiyatoriaka'' starts with Misty going to sleep one night and waking up in a forest the next day as a Pikachu.
[[/folder]]

[[folder:Films -- Animation]]
* In ''WesternAnimation/TurningRed'', after a NightmareSequence, Mei wakes up as a giant red panda the next morning, but she doesn't realize it until she [[MirrorReveal looks in the bathroom mirror.]]
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[[folder:Films — Live-Action]]
* ''Film/FreakyFriday2003'', after the characters switch bodies.
* ''Film/{{Big}}''
* ''Film/ThirteenGoingOnThirty''
* ''Film/WatermelonMan'', where a white bigot wakes up one morning as guess what color?
* ''Film/BruceAlmighty'': Grace Connelly, girlfriend of the title character, says to her boyfriend, while he eats the [[FreudianSlip breast beckfast]] ever, that she woke up that morning and felt like her boobs were bigger. Considering her boyfriend had God's powers at the time, they were.
[[/folder]]

[[folder:Literature]]
* In the ''Literature/{{Animorphs}}'' book ''The Familiar'', Jake wakes up as an adult in a BadFuture.
* ''Literature/{{Elantris}}'' begins with Raoden waking up and feeling weird, only for his servant to run away screaming and the man himself looking in the mirror and discovering that he's turned into an [[OurZombiesAreDifferent Elantrian]].
* The origin of ''Literature/GeorgeShrinks'' in the original books. In the animated series he was born that way.
* In ''Literature/TheGirlFromTheMiraclesDistrict'', the magic surges that turn people into monsters seem to be more attracted to sleeping people, often resulting in this.
* In ''Imogene's Antlers'', the titular character wakes up one day with antlers growing from her head and she and her family have to spend the whole day getting used to them. When she wakes up the next day, her antlers are gone... [[HereWeGoAgain but she now has a peacock tail!]]
* 1980 children's book ''Louis the Fish'' by Arthur Yorinks (a book once featured on ''Series/ReadingRainbow'') is an unusual case where the eponymous human butcher's metamorphosis occurs at the ''tail-end'' of the story rather than the beginning of it; suddenly waking up as a giant salmon one morning after having a series of fish and meat-related hallucinations throughout the story. Given that Louis hated his life before said transformation, though (having lived an unpleasant life under his overbearing parents and forced into the butchery business against his will by them, of which his only escape from was studying and drawing fish), he welcomes this change with open arms (er, fins) and gladly lives on a fish.
* The canonical example is probably Gregor Samsa in Creator/FranzKafka's ''Literature/TheMetamorphosis'', who wakes up one morning transformed into a giant insect.
* In ''Literature/OrlandoABiography'', the title character's GenderBender takes place in just such a way, with the notable difference that she is not in the [[UnusuallyUninterestingSight slightest perturbed by it]].
* ''Literature/ThingsNotSeen'' is about an InvisibleMainCharacter teenage boy who inexplicably wakes up like that one day. He actually doesn't notice until he's taken a shower in the dark and then looks in the mirror, at which point he returns to bed on the assumption that he's dreaming.
* ''Literature/TheWorstWitch'': Mildred is suddenly woken by the sound of her bedroom door being slammed; to the discovery that her tabby cat has grown to the size of a mammoth, everything is her room is much bigger than usual, and she has amazing jumping powers. She then sees [[MirrorReveal in the mirror]] that she has been turned into a frog.
[[/folder]]

[[folder:Live-Action TV]]
* On ''Series/AreYouAfraidOfTheDark'', the main character in ''The Tale of the Hunted'' rolls out of bed one morning as a [[strike: husky]] wolf.
* One episode of ''Series/BuffyTheVampireSlayer'', "[[Recap/BuffyTheVampireSlayerS4E12ANewMan A New Man]]", has this happen to Giles when he gets turned into a demon by Ethan Rayne.
* ''Series/ThePrisoner1967'': In the episode "[[Recap/ThePrisonerE5TheSchizoidMan The Schizoid Man]]", Number Six wakes up to find himself with a new appearance. He is greeted as "Number Twelve" and given the assignment of ''impersonating'' Number Six (who has been replaced with an actual impersonator) as part of Number Two's latest [[LossOfIdentity head-gaming scheme]].
* In the first episode of ''Series/QuantumLeap'' Sam wakes up in someone else's body. [[OnceAnEpisode It's something he's going to have to get used to.]]
* ''Franchise/StarTrek'':
** The ''Series/StarTrekTheNextGeneration'' episode "[[Recap/StarTrekTheNextGenerationS6E13FaceOfTheEnemy Face of the Enemy]]" opens with Counselor Troi getting out of bed to find that she's unaccountably become a Romulan.
** Similarly, the ''Series/StarTrekDeepSpaceNine'' episode "[[Recap/StarTrekDeepSpaceNineS03E05SecondSkin Second Skin]]" sees Major Kira wake up to find that she's a Cardassian.
* Season 2 of ''Series/StarTrekPicard'' has Seven of Nine rolling out of bed to discover that she's (a) completely human and (b) President of a human supremacist space empire.
[[/folder]]

[[folder:Music]]
* The Music/KingMissile song "Detachable Penis" starts with the lead singer waking up to realize that his penis has disappeared. However, this a surprise for the audience, not for him: It's soon revealed that he can remove it at will and occasionally misplaces it.
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[[folder:Newspaper Comics]]
* A storyarc in ''ComicStrip/FoxTrot'' parodying ''Literature/TheMetamorphosis'' features a sequence like this after Jason [[GenderBender turns into a girl.]]
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[[folder:Theatre]]
* In ''Theatre/AMidsummerNightsDream'' the clown Bottom wakes up with a donkey head. He doesn't seem to notice in the slightest, and if he does, he takes it surprisingly well.
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[[folder:Video Games]]
* The first two ''VideoGame/PokemonMysteryDungeon'' games start off with the main character, waking up in another world, having turned into a Pokemon, yet with total amnesia. All s/he knows is that s/he was a human before. This is averted in Gates To Infinity in which the character falls into the Pokemon Mystery Dungeon world from the sky.
** The Pokedex entry for Kadabra in ''Fire Red'' states: "It happened one morning - a boy with extrasensory powers awoke in bed transformed into Kadabra."
* In ''VideoGame/ThemsFightinHerds'''s [[AllThereInTheManual Book of Lore]] [[http://www.mane6.com/2015/10/book-of-lore-chapter-3-the-pact/]], Oleander the {{Unicorn}} says the trope name almost exactly when she tries to explain why her normally pure white coat has turned dark, outing her as an user of forbidden Dark Magic.
* In ''VideoGame/HometownStory'', the village sentient scarecrow remembers being transformed into a scarecrow from something else. Once his initial form is revealed, he goes more into detail about how it happened and the story includes this trope.
* ''VideoGame/TheSecretWorld'' begins with your character waking up after they swallowed a bee. When they reach for their jacket, they accidentally set it on spirit fire. For the next few weeks their life is a traumatizing hell, with no idea why they suddenly have this wild, room-shaking power forced onto them, until they train themselves to control it, at which point one of three ancient conspiracies hires them in exchange for telling them everything - or just beat them up and monologue the instruction manual in tangent koans.
* In the world of ''VideoGame/{{ARMS}}'', it's apparently possible to wake up one morning with ExtendableArms that you can use to fight in the eponymous tournaments with, which is the case for many of the playable characters. Why? How? Even in-universe, no one is sure and just cites this trope as the reason.
-->'''Spring Man:''' I was shocked at first, but having arms like this is actually pretty rad.
[[/folder]]

[[folder:Webcomics]]
* The plot of ''Webcomic/{{Avialae}}'' starts with Gannet freaking out about waking up one day to find that wings have begun [[BodyHorror bloodily]] growing out of his back.
* Things get interesting in ''Webcomic/CatNine'' when Keith gets home and sees his cat transformed into a {{cat girl}}. She's not even aware of her body until pointed out.
* Elliot of ''Webcomic/ElGoonishShive'' first experiences his PowerIncontinence in this fashion, and later discovers his [[spoiler:superheroine]] form in the same manner.
* Thus begins the many woes and complications in the life of Marion Wheeler of ''Webcomic/{{Housepets}}'', who wakes up one day to find he has mysteriously transformed into a squirrel. His attempts to solve his mystery lead him to meet fellow transformees from earlier in this comic, and form the driving force of his story.
* ''Webcomic/{{Misfile}}'' starts with Ash waking up with [[GenderBender breasts that weren't there yesterday]].
* In ''[[https://steelcitymoon.tumblr.com/ Steel City Moon]],'' the protagonist's transformations into a WolfMan always seem to occur while he's asleep. At least after the first time he knows that it's coming.
* ''WebComic/WhenIWokeUpIBecameABagelGirl'': ExactlyWhatItSaysOnTheTin.
[[/folder]]

[[folder:Web Original]]
* This is a surprisingly common form of transformation fetish on art hosting websites such as ''Website/DeviantArt'', with fictional (or photoshopped) characters waking up only to realize in shock they now have a mermaid tail or whatever else. As popular is the version with characters [[FantasticallyIndifferent just accepting the change]] and going on their lives as usual, only to face OperatorIncompatibility later on.
[[/folder]]

[[folder:Western Animation]]
* In ''WesternAnimation/AvatarTheLastAirbender'', Zuko allows Aang's bison Appa to go free and seems set up for a HeelFaceTurn. His body suffers a dramatic fever in the process; after collapsing and spending days in bed, he wakes up, goes to the mirror, and discovers his scar gone, his hair shaven and covered in air-bending tattoos. It's just a nightmare, though, but the initial shock is in the spirit of this trope.
* ''WesternAnimation/CodenameKidsNextDoor'' had an episode where Nigel wakes up as an adult in a future where he is the evil President of the United States, the other former members of Sector V, except for Abigail, are evil too, and the new members of Sector V are their kids. [[spoiler:It turns out to be AllJustADream.]] He wakes up again during TheStinger and is telling the others about the experience, only for the camera to turn and reveal [[HereWeGoAgain he has now turned into a girl]].
* The premise of ''WesternAnimation/GaryTheRat'', as an AmoralAttorney wakes up transformed into a [[RodentsOfUnusualSize giant rat]].
* This is the premise behind the French animated series ''WesternAnimation/MartinMorning'' (Martin Matin), as OnceAnEpisode, the title character wakes up in his bed in the morning to find himself turned into something abnormal (or at least abnormal for an elementary schooler) and is forced to go through his day like that. He's woken up as a wizard, a pharaoh, a vampire, a private detective, a king, and many more.
[[/folder]]

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