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Greaper: He's sleeping.

Dry Bones: Boy, he sure is.

The Big Boo: Check those bubbles coming out of his nose!

The 3 Musty Fears, Super Mario RPG: Legend of the Seven Stars

When sleeping, a character develops a bubble of snot from one nostril that inflates and deflates in sync with their breathing or their snoring. the anime equivalent of 'Zzz' used in Western cartoons and comics. While perhaps considered a pretty gross concept in the West, Japanese media portrays it as cute.

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

See also Catching Some Zs for more universal version of sleep

Examples of Snot Bubble include:


  • Louie in episodes of Rune Soldier Louie.
  • Umaru in Himouto! Umaru-chan.
  • Chu-chu in Revolutionary Girl Utena.
  • Tatewaki Kuno, his father Principal Kuno, and Genma Saotome are all shown asleep with snot bubbles during the fourth season of Ranma ½.
  • Charmeleon/Charizard in Pokémon
    • In one episode of Pokémon Black and White, when Ash battles Alder, Alder gets this when Alder falls asleep in the middle of the battle, which angers his Bouffalant and knocks out Alder instead of Ash's Pikachu.
    • some of the characters have this. In one episode, Ash's Pikachu gets this after falling asleep due to it being hit by a Hypnosis attack And A Rowlet also gets one
    • Also, in one episode of Pokémon Best Wishes Decolora Adventure!, a Metapod gets one several times before evolution
  • Oro, one of the most powerful artists in the world of Street Fighter, taunts by falling asleep with a snot bubble.
  • Common occurrence with Nobita in Doraemon.
  • In Hamtaro Elder Ham Often Gets This When Asleep
  • In the Ghost in the Shell: Stand Alone Complex Omake Tachicomatic Days, the Tachikomas get snot bubbles, being completely mechanical and not having anything resembling a nose.
  • In Digimon Adventure (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...
  • Kotengu gets a snot bubble in Harukanaru Toki no Naka de - Hachiyou Shou OAV "Omoi no Arika". He wakes up when the bubble bursts.
  • In Katekyo Hitman Reborn, the titular character does this often, along with his pet chameleon Leon. He also falls asleep at the most inappropriate times. Colonnello does this (it helps that he and Reborn knew each other when they were kids, well... before they became kids) and Tsuna does this
  • In Fullmetal Alchemist, Sloth drops off to sleep for a few seconds and develops one.
  • Mori in episode 13 of Ouran High School Host Club.
  • One scene in Black Cat featured Creed using Shiki's insects as spy cameras to watch Train as he sleeps. As he's sleeping Train does this.
  • Ginga did this when he is sleeping in the episodes of Metal Fight Beyblade.
  • France does this when he fell asleep during an Allies meeting in Axis Powers Hetalia.
  • Koizumi of Lovely Complex does this in episode 1 during the entrance ceremony.
  • Many characters in One Piece, including Luffy
    • 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 didn't wake up.
  • Many Animals In Yoohoo And Friends fall asleep with snot bubbles,
  • This trope's been in use for a long time. Happened in at least one episode of the 1960s Gigantor series.
  • Mojo Jojo has this in the second act of the second episode of Powerpuff Girls Z. Blossom pops it with a pin, causing him to wake up.

Comic Books

  • Mr Beaver: Mr. Beaver gains one when sleeping
  • The Super Mario World comic series that was featured in Nintendo Power during the 90s had Luigi make use of this phenomenon.
  • Apple Bloom does this in the My Little Pony: Micro Series comic books.

Video Games

  • Tails gets this if you press Up in Sonic Advance 2.
  • Overlord Babylon in Makai Kingdom, a huge dragon often falls asleep with a snot bubble.
  • The Old Man at the end of Time from Chrono Trigger, is always asleep with a snot bubble whenever the party visits him
  • In Little Nemo the Dream Master, the animals that can filled with candies fall asleep with snot bubbles, even they have no nose, like a bee or a hermit crab.
  • One of the minigames in Wario Ware: Twisted involves pressing a button to pop a snot bubble. In the overseas version, it was changed to popping a blown bubble from chewing gum.
  • Seen in Super Mario RPG, whenever one of the characters was affected with the "sleep" status. This was Lampshaded in a scene where three ghosts visit Mario when he's asleep. They argue over whether he's truly asleep, until one of them points out the bubble coming from his nose.
  • The Piranha Plants in Super Mario 64 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. Lakitu wakes up Yoshi by popping the bubble Leaving his Idle Animation on for too long has him fall asleep with one as well.
    • In Mario Golf for the Nintendo 64 This is Yoshi's animation on the select screen
  • In the Mario Party 2 minigame "Sneak 'N Snore", the Chain Chomp has this while he is asleep and it pops just before he wakes up.
  • The Paper Mario games have a Running Gag of showing Mario with one when falling asleep listening to the long stories told by Merlon and his family. The first game also shows the Clubba enemies in Tubba Blubba's Castle with these
  • One of the enemies in Mario & Luigi: Bowser's Inside Story, the Naplock, can attack you with its snot bubbles.
  • The Japanese box for Mario & Luigi: Dream Team has Luigi with a snot bubble, while the American box simply has "Zzz".
  • The Maku Tree from The Legend Of Zelda: Oracle of Seasons spends most of the game sleeping to talk to him, you have to pop the bubble and wake him up.
  • multiple snot bubbles appear when you come across a sleeping Moblin, Bokoblin or Hinox in The Legend of Zelda: Breath of the Wild.
  • Sleep was shown like this in Final Fantasy V. Final Fantasy VII used Z's instead.
  • The bear "Sleepy" in Okami pretty much always has one.
  • The Boat Shop Caretaker in the fourth case of Phoenix Wright: Ace Attorney falls asleep with a snot bubble every single time someone stops talking to him.
    • Cammy Meele in Investigations does this, when she falls asleep with her hair covering her face. It's shown later that it's actually caused by a bubble pipe.
  • All the critters in Cubivore develop a snot bubble when they sleep, even retaining it for a few seconds after they wake up.
  • The Loading Screen on Dance Dance Revolution Kids has The Orange Hamster develop a snot bubble when it sleeps. it burst's when the loading's over waking it up
    • Sleeping characters in Loco Roco have a bubble.
  • In Mother 3, Duster sleeps with one when he is first introduced.
  • In Pokémon X and Y, when 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.
  • The Loading Screen in Bomberman Jetters has Bomberman with a snot bubble which bursts when the loading's over
  • Blastoise's sleeping sprite in Pokémon Mystery Dungeon has Blastoise with this
  • Happens to Deadpool when he takes a nap in the apartment's couch or in the middle of two really chatty party girls.
  • In Kirby's Return To Dreamland You Shake Wii Remote to make Kirby's snot bubble grow larger and larger and pop waking him up The bubble can also defeat weak enemies when it pops
  • There are Snot Bubble Enemies in Miitopia, called the Woof-o'-the-Wisp. They spawn from sleepy puppies. They burst when defeated, waking the doggie up.
  • In Drawn to Life, scenes with a character sleeping include this.
  • 1-up's Idle Animation from Stinkoman 20 X 6.
  • One of the avatar character's idle animations from Just Dance Kids 2 has them sleeping complete with this, before waking up in surprise.

Asian Animation

  • Happy Heroes: In Season 9 episode 1, Big M. fakes sleepwalking to avoid catching Doctor H.'s suspicion. He develops a snot bubble from his nose to make it convincing.
  • In Pleasant Goat and Big Big Wolf, it's not uncommon for characters (particularly Paddi) to have snot bubbles when they're asleep.

Western Animation

  • Beast Boy in the Animesque Teen Titans could constantly be found snoozing in this manner.
  • Dutch cartoon Boes has the starring lazy Oxen do this every time he falls asleep.
  • Has happened to Ed in Ed, Edd 'n' Eddy on at least one occasion, it causes him to float away.

Real Life