Snot Bubble

A Trope used in Japanese Media. When sleeping, a character, develops a bubble of snot from one nostril that inflates and deflates in sync with their breathing or their snoring. Sometimes multiple, smaller snot bubbles come out in succession while the character is sleeping

The bubble bursts upon awakening. In some cases, it is shown that you can awaken the character by popping it.

Anime and Manga

Animal Crossing New Horizons Deserted Island Diary One of the main humans, Guchan, is a Sleepyhead who has a large snot bubble. He's able to form words and objects with the bubble, and use it to balance himself when he surfs.

Digimon Adventure In episode eleven, Gomamon says that a snot bubble means that the digimon is easy to fool. He proceeds to throw a rock at it to pop it, rather than at the Digimon itself...

Doraemon A common occurrence with Nobita. There's even a gun-type gadget that can suck out "sleepiness" bubbles and transfer all the sleepiness to someone else.

*Futari wa Pretty Cure*: Mepple has one while he has a nap on the mountain trip.

*Ghost in the Shell: Stand Alone Complex In Tachicomatic Days, the Tachikomas often get snot bubbles, despite being completely mechanical and not having anything resembling a nose.*

Hamtaro Elder Ham Gets This When Asleep

One Piece

* In the Enies Lobby arc, when Usopp as Sniper King, is trying to get the key from Jabra without waking him up, Jabra gets a Snot Bubble, and even when it pops, he still doesn't wake up.
* On the other end of things, popping Gekko Moriah's is *required* to wake him up.

Panty and Stocking Panty and Chuck are seen with these the most often, especially in "Pulp Addiction" when they're bored out of their minds.

Pokemon Throughout the Series, Some of the characters have this. In one epsiode, Ash's Pikachu gets this after falling asleep due to it being hit by a Hypnosis attack, and a Rowlet also gets one

* In one episode of *Pokémon Black and White*, when Ash battles Alder, Alder gets this when Alder falls asleep, which angers his Bouffalant, resulting in Bouffalant to knock out Alder instead of Ash's Pikachu.
* Also, in one episode of *Pokémon Best Wishes Decolora Adventure!*, a Metapod also gets one several times before evolution.

Powerpuff Girls Z Mojo Jojo has this in the second episode. Blossom pops it with a pin, causing him to wake up.

Reborn (2004) The titular character does this, along with his pet chameleon Leon. He also falls asleep at the most inappropriate times. Colonnello also does this, and Tsuna does this occasionally.

Asian Animation

Happy Heroes In Season 9 episode 1, Big M. fakes sleepwalking to avoid catching Doctor H.'s suspicion. He produces a snot bubble from his nose to make it convincing.

Pleasant Goat and Big Big Wolf It's not uncommon for characters (especially Paddi) to have snot bubbles when they're asleep.

Live Action TV

Ultraman Taiga has an episode featuring Takkong, a benevolent guardian kaiju who's introduced crawling from the sea and taking a nap near an oil refinery. Complete with a giant snot bubble (larger than trucks!) coming out his nostrils.

Video Games

*Ace Attorney The Boat Shop Caretaker in the fourth case falls asleep with a snot bubble every single time someone stops talking to him.*

*Bomberman Jetters The Loading Screen has Bomberman with a snot bubble which bursts when the loading's over.*

*Chrono Trigger The old man at the End of Time is asleep with a snot bubble when the party visits him.*

Cubivore All the critters develop a snot bubble when they sleep, even retaining it for a few seconds after they wake up.

Deadpool Happens to Deadpool when he takes a nap on his apartment's couch, or in the middle of two really chatty party girls.

Drawn To Life Almost all scenes with a character sleeping include this.

Final Fantasy The Sleep Status Effect is shown like this in the SNES games.

Just Dance 2 One of your avatar character's idle animations has them sleeping with this, before waking up in surprise.

Kirby's Return To Dreamland features this for the Sleep ability, not only it wakes Kirby up pretty quickly, but it also destroys nearby enemies who came across it.

The Legend Of Zelda The Maku Tree spends most of the game sleeping in this manner; to talk to him, you have to pop the bubble and wake him up.

Little Nemo The Dream Master The animals that can be bribed with candies fall asleep with snot bubbles, even those that have *no nose*, like a bee or a hermit crab.

Makai Kingdom Overlord Babylon, a huge dragon who once had enough power to rule the universe, often falls asleep with a snot bubble.

Metal Slug From the second game onwards, if your character is left idle for a while, they'll doze off (while standing!) with a bubble coming out of their noses.

Miitopia has snot bubble enemies. They spawn from harmless, sleepy puppies. They burst when defeated, waking the doggie up.

Okami Sleepy sleeps while showing a snot bubble.

Pokemon X And Y Sometimes, upon launching Pokémon Amie, instead of the Catching Some Z's trope, you will find your Pokémon in a different sleeping position. With Froakie, the left bubble on its nose is like a snot bubble.

Super Mario

*Mario & Luigi: Superstar Saga One of the enemies* The Malibut has a Snot Bubble

*Mario & Luigi: Dream Team The Japanese and Korean box arts have Luigi with a snot bubble, while the international box arts simply have a "Zzz" instead.*

Mario Golf This is Yoshi's animation on the mode select screen.

Mario Party 2 and Mario Party Superstars In the minigame "Sneak 'n Snore", the Chain Chomp has this while he is asleep and it pops just before he wakes up.

Paper Mario The first three games have a Running Gag of showing Mario with one when falling asleep listening to the overly long stories told by Merlon and his family.

Paper Mario 64 The Clubba enemies in Tubba Blubba's Castle produce large snot bubbles while napping.

Super Mario 64 The Piranha Plants are asleep with a snot bubble, until you wake them up.

Yoshi is seen sleeping on the roof of Peach's Castle with a snot bubble in the opening cutscene for *Super Mario 64 DS*. The camera Lakitu wakes up Yoshi by popping the bubble. Leaving his Idle Animation on for too long has him fall asleep with one as well.

Super Mario Bros Wonder Some Goombas are sleeping with a snot bubble.

*Super Mario RPG: Legend of the Seven Stars*: Seen whenever one of your characters was affected with the "sleep" status. This was Lampshaded in a scene where three ghosts visit Mario while he's asleep. They argue over whether he's truly asleep, until one of them points out the bubble coming from his nose.

Super Smash Bros Ultimate While not present in-game, King K. Rool is asleep at the start of Banjo and Kazooie's reveal trailer. He is woken up by Diddy Kong popping his snot bubble after a Jiggy bounces on screen.

Warioware Twisted One of the minigames involves timing a button press to pop a snot bubble. In the international versions, it is changed to popping a blown bubble from chewing gum.

Western Animation

*The Adventures of Jimmy Neutron, Boy Genius*: In a non-sleeping example, Jimmy, Carl and Sheen have Carl blow a gigantic snot bubble for a school talent show and fly on it. Until it pops, that is.

*The Adventures of Super Mario Bros. 3*: King Koopa does this in an episode when he's trying to take a nap.

*Ed, Edd n Eddy*: On one occasion, a sleeping Ed produces a bubble so big that he floats away.

*Kaeloo*: In Episode 80, Mr. Cat is seen sleeping like this for a few minutes before he is woken up.

*SpongeBob SquarePants* gets one with a Nightmare Face in "WhoBob WhatPants?".

*Totally Spies!*: In "S.P.I", Clover sleeps with this when Jerry lists off the same old gadgets; it pops when he mentions the new spy gadget for the episode