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Bad Dreams (Japanese: ナイトメア Nightmare) is an Ability introduced in Generation IV. It is the signature Ability of Darkrai.

Effect

In battle

At the end of each turn, each adjacent sleeping opponent takes damage equal to 1/8 of its maximum HP.

Bad Dreams inflicts damage after a Pokémon that is drowsy due to Yawn falls asleep (and thus inflicts damage to a Pokémon the same turn it falls asleep due to drowsiness). Bad Dreams applies after a Pokémon has the opportunity to be woken up by Hydration, Shed Skin, or Healer.

Outside of battle

Bad Dreams has no effect outside of battle.

Pokémon with Bad Dreams

#	Pokémon		Types		First Ability	Second Ability	Hidden Ability
0491		Darkrai	Dark		Bad Dreams	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 other games

Mystery Dungeon series

At the end of each turn, enemy Pokémon in the same room with a sleep-related status condition (other than Yawning) will receive 15 points of HP damage.

Description

In the anime

In the manga

Pokémon Adventures

Being affected
The Pokémon causes the opponent to have a nightmare.
Pokémon	Method
User	First Chapter Used In		Notes
	If a person or a Pokémon is asleep near Darkrai, it suffers from horrible nightmares that can be fatal if the sleeping person or Pokémon doesn't wake up in time. The Ability is active even if Darkrai is inside of a Poké Ball.
Sird's Darkrai	Startling Staraptor		Debut

Movie adaptations

Trivia

In other languages

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