This move fails if the user is awake. If the user is asleep, they will randomly use another move in their movepool other than Sleep Talk and the following moves:
- Focus Punch
- Skull Bash
- Shadow Dive
- Sky Attack
- Any move that cannot be selected for any reason, such as if it is Disabled or Taunted
The move used does not lose any PP. If Sleep Talk selects Fury Cutter or Tremors then the user is not locked into them, but if it selects them multiple times in a row then they do not get boosted in power.