The Spring Festival 2025 will take place from May 5th, 2025 to May 12th, 2025 in Pokémon Sleep.

Event: Spring Festival 2025

This week-long event is a special time when Snorlax’s requested dishes will be set to “Salads” and the final Strength value for dishes will be multiplied by 1.5.

To commemorate this event, two new Salad recipes will be added around Apr. 30, 2025, at 23:00 p.m.! Also, Pokémon who collect Fancy Eggs or Pure Oil are more likely to appear! We hope you’re looking forward to this!

Event Period: May. 5 (Mon) at 4:00 a.m. to May. 12 (Mon) at 3:59 a.m.
Event Areas: All areas
Mission Period: May. 5 (Mon) at 4:00 a.m. to May. 12 (Mon) at 3:59 a.m.

Bonuses

The following effects will trigger in the applicable areas during this event.

— All Days —
• Certain Pokémon will be more likely to appear during sleep research.
• Final Strength gains from dishes will be multiplied by 1.5 (or 3 for Extra Tasty dishes or 4.5 for Extra Tasty dishes on Sunday only).
• Dishes will be set to “Salads”.
• During sleep research, one Pokémon will for sure arrive hungry.
• A few Pokémon of different sleep types will appear during sleep research regardless of your sleep type for that day.

Greater Appearance Rates

The following Pokémon are more likely to appear during this event!
Greater Appearance Rate: Happiny, Chansey, and Blissey.
Slightly Greater Appearance Rate: Magnemite, Ditto, Togepi, Delibird, Sableye, Swablu, Shuppet, Spheal, Riolu, Croagunk, and Cramorant.
Pokémon You Can Encounter in Each Area:
Greengrass Isle: Magnemite, Chansey, Ditto, Togepi, Delibird, Blissey, Swablu, Shuppet, Spheal, Happiny, Riolu, Croagunk, and Cramorant.

Cyan Beach: Chansey, Ditto, Blissey, Spheal, Happiny, Croagunk, and Cramorant.

Taupe Hollow: Ditto, Togepi, Sableye, Shuppet, Riolu, and Croagunk.

Snowdrop Tundra: Chansey, Ditto, Togepi, Delibird, Blissey, Swablu, Spheal, Happiny, Riolu, Croagunk, and Cramorant.

Lapis Lakeside: Ditto, Togepi, Swablu, and Riolu.

Old Gold Power Plant: Magnemite, Ditto, and Shuppet.

Notes

• 【Important】 Each day of the Spring Festival 2025 event rolls over at 4:00 a.m.
• Event bonuses apply only to sleep data tracked during the event.
• If you wait to report sleep data tracked before the event began and select “Review Later” during the event, event bonuses will not be applied.
• If you wait to report sleep data tracked during the event and select “Review Later” after the event has ended, event bonuses will be applied.
• Event bonuses do not apply to sleep tracking during the tutorial.
• Event bonuses will trigger regardless of which site you conduct your sleep research in.
• If overlapping events trigger more than one of the same type of bonus, the larger bonus will be applied.

Source: https://www.pokemonsleep.net/en/news/323539313131373936383639313639313533/