Yawn

Makes the target drowsy and at the end of the following turn, the drowsy Pokémon falls asleep (unless it is already afflicted by a non-volatile status condition). A drowsy Pokémon loses its drowsiness by switching out. Drowsiness can be passed by Baton Pass. Yawn always hits, unless the target is in a semi-invulnerable turn. Does not affect targets behind a substitute or targets with Insomnia, Vital Spirit, or Sweet Veil.