Research Event: Suicune. The legendary Pokémon Suicune is coming to Pokémon Sleep! A Suicune Research Event is planned for September. During the event, water-type Pokémon will be especially active!

YouTube Clip - Pokémon Sleep - Suicune arrives in September 2024

Source: https://www.youtube.com/watch?v=Jo7uRco5YZ4

Event Notice: Suicune Research

Beginning in early September, 2024, we will be holding an event—Suicune Research! You can exchange samples of Suicune Mane that you collect during the event for Suicune Incense, which you can use to research Suicune’s various sleep styles!

Water-type helper Pokémon will be particularly effective during this event, so we recommend raising your Water-type helper Pokémon to get ready!

Water-type helper Pokémon: Squirtle, Wartortle, Blastoise, Psyduck, Golduck, Slowpoke, Slowbro, Vaporeon, Totodile, Croconaw, Feraligatr, Slowking, Quaxly, and Quaxwell.

We’re also preparing some functions and rewards that will allow everyone—even Pokémon Sleep beginners—to research Suicune’s sleep styles and befriend it more easily.

More details and the event’s start date are coming in a later update. We hope you’re looking forward to this event!

Source: https://www.pokemonsleep.net/en/news/313634383835373333373239383934343031/