Pokémon Sleep has announced that the Flower Festival event will take place from from Monday, April 22nd 2024 at 4:00 a.m. until Monday, April 29th, 2024 at 3:59 a.m. in all areas!

Event Notice: Flower Festival

The Flower Festival event lasts from 4:00 a.m. on Monday, April 22, until 3:59 a.m. on Monday, April 29, in all areas! During this event, you’ll be able to meet Pokémon of various sleep types regardless of your own. In particular, Grass-type and Fairy-type Pokémon will be more likely to appear. You may even meet a Shiny Pokémon!

Also during this event, Snorlax’s requested dishes will be set to “Salads” and the final Strength value for dishes will be multiplied by 1.5.
Note: The multiplier for Extra Tasty dishes will be different depending on the day. On Sunday, Extra Tasty dishes will give 4.5 times as much Strength, and on the other days, it will give 3 times as much.

And during this week-long event, one of the Pokémon that visits during sleep research will for sure arrive hungry!
Notes: This applies to only one sleep session per day.
This effect applies separately from the hungry effects of Friend Incense and Good Camp Tickets.
Example: If you use a Good Camp Ticket and Friend Incense together during the event, at least three of the Pokémon that show up during sleep research will for sure be hungry.

In addition, through limited-time missions during the event, you can get great rewards, such as Comfey Incense. We hope you’re looking forward to it!

How to Progress in the Event

Participating in the event is easy! Simply tap the Sleep button before going to sleep during the event period to track your sleep. A variety of event-related effects will trigger during your sleep research.
Note: Event bonuses can trigger in any area during this event.

Bonuses

— Last Day of the Event (4/28) —
• During sleep research, one Pokémon will for sure be hungry.
• Dishes will be set to “Salads”.
• Final Strength gains from dishes will be multiplied by 1.5 (or 4.5 for Extra Tasty dishes).
• A few Pokémon of different sleep types will appear during sleep research regardless of the researcher’s sleep type for that day.
• Certain Pokémon will be more likely to appear during sleep research.
• You may meet certain Shiny Pokémon

— Other Days (4/22—4/27) —
• During sleep research, one Pokémon will for sure be hungry.
• Dishes will be set to “Salads”.
• Final Strength gains from dishes will be multiplied by 1.5 (or 3 for Extra Tasty dishes).
• A few Pokémon of different sleep types will appear during sleep research regardless of the researcher’s sleep type for that day.
• Certain Pokémon will be more likely to appear during sleep research.
• You may meet certain Shiny Pokémon

Pokémon That Are Easier to Encounter during the Event

During the event, the following Pokémon are more likely to appear!
Greater Appearance Rate
(Grass types) • Bulbasaur, Ivysaur, Venusaur, Bellsprout, Weepinbell, Victreebel, Chikorita, Bayleef, Meganium, Leafeon
(Fairy types) • Clefairy, Clefable, Jigglypuff, Wigglytuff, Cleffa, Igglybuff, Togepi, Togetic, Togekiss, Sylveon, Comfey

Note: The greater appearance rate for these Pokémon applies only to the separate areas where each Pokémon appears.

Greengrass Isle
• Bulbasaur, Ivysaur, Venusaur, Bellsprout, Weepinbell, Victreebel, Chikorita, Leafeon
• Clefairy, Clefable, Jigglypuff, Wigglytuff, Cleffa, Igglybuff, Togepi, Togetic, Togekiss, Sylveon, Comfey

Cyan Beach
• Bellsprout, Weepinbell, Chikorita
• Clefairy, Clefable, Jigglypuff, Wigglytuff, Cleffa, Igglybuff, Comfey

Taupe Hollow
• Clefairy, Clefable, Jigglypuff, Wigglytuff, Cleffa, Igglybuff, Togepi

Snowdrop Tundra
• Bellsprout
• Clefairy, Clefable, Jigglypuff, Cleffa, Togepi, Togetic

Lapis Lakeside
• Bulbasaur, Ivysaur, Venusaur, Bellsprout, Weepinbell, Victreebel, Chikorita, Bayleef, Meganium, Leafeon
• Clefairy, Clefable, Jigglypuff, Cleffa, Igglybuff, Togepi, Togetic, Comfey

Notes about the Flower Festival

• [Important] Each day of the Flower Festival rolls over at 4:00 a.m.
• During the event, if there are multiple “more likely to appear” bonuses that apply to the same Pokémon, the bonus with the larger effect will be applied.
• Event bonuses apply only to sleep tracking that begins within the event period.
• If you wait to report sleep data tracked before the event begins 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.

Source: https://www.pokemonsleep.net/en/news/5519/