Insomnia is an ability introduced in Generation III. The Pokémon cannot be put to sleep; this includes both opponent-induced sleep, as well as user-induced sleep via Rest. If the Pokémon tries to use moves such as Rest, that move will fail. It is one of two Abilities that prevent sleeping (the other is Vital Spirit).

Pokémon

Natural

Pokédex Pokémon Sprite Type
#096 Drowzee 096.png Type Psychic.gif
#097 Hypno 097.png Type Psychic.gif
#163 Hoothoot 163.png Type Normal.gifType Flying.gif
#164 Noctowl 164.png Type Normal.gifType Flying.gif
#167 Spinarak 167.png Type Bug.gifType Poison.gif
#168 Ariados 168.png Type Bug.gifType Poison.gif
#198 Murkrow 198.png Type Dark.gifType Flying.gif
#353 Shuppet 353.png Type Ghost.gif
#354 Banette 354.png Type Ghost.gif
#430 Honchkrow 430.png Type Dark.gifType Flying.gif

Hidden

Pokédex Pokémon Sprite Type
#225 Delibird 225.png Type Ice.gifType Flying.gif
#710 Pumpkaboo 710.png Type Ghost.gifType Grass.gif
#711 Gourgeist 711.png Type Ghost.gifType Grass.gif

Mega Evolution

Pokédex Pokémon Sprite Type
#150 Mewtwo 150M2.png Type Psychic.gif
Community content is available under CC-BY-SA unless otherwise noted.