Sleep

Prevents a Pokémon from using any move for 1-3 turns.

Sleep (SLP) prevents an affected Pokémon from using any moves for 1-3 turns.
After the required number of turns passes, the Pokémon will wake itself up naturally.

Effects that interact with the Sleep status condition:

Pokémon with the ability Effect Spore have a 11% chance to make enemies that make contact with them fall asleep.
Pokémon with the ability Insomnia, Vital Spriti, Comatose or Purifying Salt will not fall asleep.
Pokémon with the ability Leaf Guard only prevents sleep during harsh sunlight
Pokémon with the ability Natural Cure are cured after switching out.
Pokémon with the ability Hydration are cured during rain
Pokémon with the ability Shed Skin have a 30% chance to be cured at the end of each turn.
Pokémon with the ability Healer have a 30% chance to wake up their allies.
Pokémon with the ability Sweet Veil and their allies will not fall asleep.
Pokémon with the ability Eearly Bird are only asleep for half the usual amount.

Uproar will wake any sleeping Pokémon.
Aromatherapy and Heal Bell cure the user's entire party.
Wake-Up Slap always wakes a sleeping Pokémon up.
Worry Seed changes the target's ability to Insomnia and wakes it up immediately.
Electric Terrain and Misty Terrain protect the user's party from being burned.

The moves Snore and Sleep Talk can only be used while asleep.
Pokémon with the abilities Guts, Marvel Scale, Quick Feet can receive benefits by being asleep.

Changes

• In Gen 1 Sleep lasts for 1-7 turns.
  Haze wakes up sleeping Pokémon.
• In Gen 2 Sleep lasts for 1-6 turns.
• In Gen 3-4 Sleep lasts for 1-4 turns.
  Heal Bell does not cure the burn of any Pokémon with the ability Soundproof.
• In Gen 5 sleeping Pokémon have their counter reset when switching out.