Chesto Berry (item)

If the holder falls asleep, then they will instantly wake up. Activates from. One-time use.

Competitive use Chesto Berry + Rest was pretty popular in older Pokemon games, but remember it only works once. can add a bit more durability while you sleep, but if you're using something that runs Rest, a boosting move, and two attacking moves, Chesto will probably work out better for you.