Insomnia (Ability)

Insomnia	ふみん
	Insomnia
Flavor text Generation III Prevents sleep. Generation IV Prevents the Pokémon from falling asleep. Generation V Prevents the Pokémon from falling asleep. Generation VI Prevents the Pokémon from falling asleep. Generation VII The Pokémon is suffering from insomnia and cannot fall asleep. Generation VIII Currently unknown Generation IX Currently unknown

Insomnia (Japanese: ふみん Insomnia) is an Ability introduced in Generation III. It is one of three Abilities that prevent sleeping, the others being Vital Spirit and Sweet Veil.

Effect

In battle

Insomnia prevents the Pokémon from being afflicted by sleep and Yawn. Rest will fail when used by the Pokémon.

A Pokémon with this Ability will wake up if it is asleep in battle (such as if it gains the Ability outside of battle or by an effect like Skill Swap, or is put to sleep by a Pokémon with an Ability like Mold Breaker).

If a Pokémon with this Ability is drowsy due to Yawn, when it would fall asleep the Ability activates and keeps it awake.

The move Worry Seed can change the target Pokémon's Ability to Insomnia.

Generation III

If a sleeping Pokémon with Insomnia is sent into battle as one of the lead Pokémon or to replace a fainted Pokémon, or gains Insomnia due to Trace, it will not be cured of sleep until after a Pokémon takes its turn (uses a move, switches out, etc.). It will be cured of sleep if it is switched in to replace a switched out Pokémon.

If a sleeping Pokémon has Insomnia as its original Ability but not its current Ability, it will remain asleep when switched out.

If the Pokémon with this Ability is asleep and is holding a Chesto or Lum Berry, Insomnia will cure the Pokémon of sleep before the Berry has a chance to be consumed.

Generation IV

There is no known way for a sleeping Pokémon with Insomnia to enter battle.

If a sleeping Pokémon has Insomnia as its original Ability but not its current Ability, if it is one of the active Pokémon at the end of the battle or switched out, it will be cured of sleep (with no message).

Generation V onward

When a sleeping Pokémon with Insomnia enters battle, it will be cured of sleep.

If a sleeping Pokémon has Insomnia as its original Ability but not its current Ability, it will remain asleep when switched out.

If the Pokémon with this Ability is asleep and is holding a Chesto or Lum Berry, the Berry will be eaten and cure the Pokémon of sleep before Insomnia has a chance to activate.

Outside of battle

If a sleeping Pokémon gains Insomnia by evolution or the Ability Capsule, it will not wake up until sent into battle. Pokémon with Insomnia will not be put to sleep by the Gentleman's Kirlia in the Battle Pike nor the Battle Arcade's game board.

Pokémon with Insomnia

#	Pokémon		Types		First Ability	Second Ability	Hidden Ability
0096		Drowzee	Psychic		Psychic	Insomnia	Forewarn	Inner Focus
0097		Hypno	Psychic		Psychic	Insomnia	Forewarn	Inner Focus
150MY	Mewtwo	Mewtwo	Psychic		Psychic	Insomnia	None	None
0163		Hoothoot	Normal	Flying	Insomnia	Keen Eye	Tinted Lens
0164		Noctowl	Normal	Flying	Insomnia	Keen Eye	Tinted Lens
0167		Spinarak	Bug	Poison	Swarm	Insomnia	Sniper
0168		Ariados	Bug	Poison	Swarm	Insomnia	Sniper
0198		Murkrow	Dark	Flying	Insomnia	Super Luck	Prankster
0225		Delibird	Ice	Flying	Vital Spirit	Hustle	Insomnia
0353		Shuppet	Ghost		Ghost	Insomnia	Frisk	Cursed Body
0354		Banette	Ghost		Ghost	Insomnia	Frisk	Cursed Body
0430		Honchkrow	Dark	Flying	Insomnia	Super Luck	Moxie
0710		Pumpkaboo	Ghost	Grass	Pickup	Frisk	Insomnia
0711		Gourgeist	Ghost	Grass	Pickup	Frisk	Insomnia
Please note that Abilities marked with a superscript are only available in the stated generation or later. For Generation III and IV games, ignore Hidden Abilities.

Pokéstar Studios opponents with Insomnia

#	Pokémon		Types		First Ability	Second Ability	Hidden Ability
0000	Humanoid	Humanoid	Normal		Normal	Insomnia	None	None
Please note that Abilities marked with a superscript are only available in the stated generation or later. For Generation III and IV games, ignore Hidden Abilities.

In the manga

In the Pokémon Adventures manga

Waking up Resisting sleep
The Pokémon cannot fall asleep. Also, if it is sleeping, it will immediately wake up.
Pokémon	Method
User	First Chapter Used In		Notes
	Regigigas cannot fall asleep. Also, if it is sleeping while acquiring the Ability, it will immediately wake up.
Diamond's Reg	The Final Dimensional Duel X		Debut Used via Worry Seed
	Azelf cannot fall asleep. Also, if it is sleeping while acquiring the Ability, it will immediately wake up.
A wild Azelf	The Final Dimensional Duel X		Debut Used via Worry Seed
	Uxie cannot fall asleep. Also, if it is sleeping while acquiring the Ability, it will immediately wake up.
A wild Uxie	The Final Dimensional Duel X		Debut Used via Worry Seed
	Mesprit cannot fall asleep. Also, if it is sleeping while acquiring the Ability, it will immediately wake up.
A wild Mesprit	The Final Dimensional Duel X		Debut Used via Worry Seed
	Palkia cannot fall asleep. Also, if it is sleeping while acquiring the Ability, it will immediately wake up.
A wild Palkia	The Final Dimensional Duel X		Debut Used via Worry Seed
	Dialga cannot fall asleep. Also, if it is sleeping while acquiring the Ability, it will immediately wake up.
A wild Dialga	The Final Dimensional Duel X		Debut Used via Worry Seed
	Cresselia cannot fall asleep. Also, if it is sleeping while acquiring the Ability, it will immediately wake up.
Palmer's Cresselia	The Final Dimensional Duel X		Debut Used via Worry Seed
	Heatran cannot fall asleep. Also, if it is sleeping while acquiring the Ability, it will immediately wake up.
Charon's Heatran	The Final Dimensional Duel X		Debut Used via Worry Seed

• In volume 42, Silver's Honchkrow was revealed to have Insomnia as his Ability.

Trivia

• Delibird has Insomnia as its Hidden Ability although it already has access to another Ability with the exact same in-battle effect.

In other languages

Language Title Chinese Cantonese 不眠 Bātmìhn * 失眠 Sātmìhn * Mandarin 不眠 Bùmián * 失眠 Shī​mián​ * French Insomnia German Insomnia Italian Insonnia Korean 불면 Bulmyeon Portuguese Brazil Insônia Portugal Insónia Spanish Insomnio Vietnamese Mất Ngủ

This article is part of Project Moves and Abilities, a Bulbapedia project that aims to write comprehensive articles on two related aspects of the Pokémon games.