Pokémon Sleep players will soon be able to pick up the new Trial Bundle, a limited-time item pack designed to support sleep research with Diamonds and useful in-game items. The bundle will be available from July 7 through Feb. 25, 2027, giving new and returning researchers an extended window to claim its contents. The Trial Bundle is intended to help players progress more smoothly by providing resources that can be used during sleep research and other in-game activities. Availability and bundle contents are detailed in the official Pokémon Sleep announcement.
Source: Official Pokémon Sleep news and PokemonSleep.net