Pokémon Sleep has announce that Version 2.6.0 will be released on March 26th, 2025, and it adds New Features and other adjustments. To update to the app’s new version, maintenance will be conducted from March 26th, 2025 at 0:30 a.m. to March 26th, 2025, at 5:00 a.m.

Maintenance and Version 2.6.0 Update

To update to the app’s new version, maintenance will be conducted during the following time period.

Maintenance Period:
Starts: Mar. 26, 2025, at 0:30 a.m.
Ends: Mar. 26, 2025, at 5:00 a.m.

New Features

■ Preparation for a new event Cresselia vs. Darkrai
■ Addition of a new alarm sound: Let’s Go
■ Preparation for features to commemorate World Sleep Day. Please see the relevant announcement for more details.

Balance Adjustments

■ Increase to the number of candies received after sleep research
The number of candies you receive when researching sleep styles will increase by 1 or 2.

■ Adjustments to sleep research rewards
If you conduct sleep research twice in one day and research at least 11 Pokémon in a single day, the rewards for the eleventh and any subsequent Pokémon will be less, as follows:
• 1 Pokémon candy
• Half the usual number of Dream Shards and research EXP

■ Adjustments to some Natures
• Speed of Help ▼▼ modifiers based on a Pokémon’s Nature, which affect helper stats, will be adjusted so that the Pokémon can help a little faster than before.
• This applies to the following Natures: Bold, Modest, Calm, and Timid.

Other

■ Changes to weekly mission rewards
The Pokémon incenses you can get as weekly missions rewards in some areas will change.
• This applies to the following areas: Greengrass Isle, Cyan Beach, Taupe Hollow, and Snowdrop Tundra.
Note: These changes will start Mar. 31 (Mon) at 4:00 a.m..
■ Some text adjusted or unified
■ Other small bug fixes and adjustments

Source: https://www.pokemonsleep.net/en/news/323438363431393238353435393539393337/