Like many other baby Pokémon, Mime Jr. will have the Slumbering sleep type, which corresponds to non-rapid eye movement sleep (NREM sleep), also known as deep sleep. Mr. Mime meanwhile is follows the trend of other non-baby Fairy-type Pokémon in being the Snoozing sleep type, which corresponds to rapid eye movement sleep (REM sleep) or Stages 1-2 of non-rapid eye movement sleep (NREM sleep).
- Sources
News — Pokémon Sleep Official Webpage
Pokémon Sleep is a game that allows you to track and record your sleep using your smart device. Please check out the update information.www.pokemonsleep.net