The 37th Good Sleep Day event will run in Pokémon Sleep from July 28 at 4 a.m. to July 31 at 3:59 a.m. local time, giving researchers another opportunity to earn bonuses tied to the lunar cycle and get more out of their sleep research. During the event, Drowsy Power will be multiplied depending on the day, Pokémon Sleep EXP and helper Pokémon EXP earned through sleep research will be increased and players will have a greater chance of encountering Pokémon sleep styles. To coincide with the event, Good Sleep Day Bundle Vol. 37 will also be available in the in-game shop for a limited time, featuring a selection of helpful items designed to support sleep research throughout the event.
Source: Official Pokémon Sleep news and PokemonSleep.net
Nintendo & Pokémon Blog 
One thought on “37th Good Sleep Day event announced for Pokémon Sleep, Good Sleep Day Bundle Vol. 37 also coming soon”