Summary
- Pokemon Sleep confirms Darkrai and Cresselia arriving in March 2025, with Darkrai being the first Mythical added to the game.
- The “Cresselia vs Darkrai” event aims to improve players’ sleep by fighting nightmares brought by Darkrai.
- Players should level up Psychic-Type Pokemon for an advantage in the upcoming event.
Pokemon Sleep has confirmed the arrival of Darkrai and Cresselia to the game in March 2025. With this announcement, Cresselia will be the fourth Legendary Pokemon debuting in Pokemon Sleep since its launch, while Darkrai will be the first Mythical.
Since its release in July 2023, Pokemon Sleep has added more Pokemon to its roster with regular updates and events. However, the game did not include any Legendary Pokemon in its first year. It wasn’t until September 2024 that Pokemon Sleep released the Legendary Trio of Entei, Raikou, and Suicune with a limited-time event that increased players’ chances of encountering them. Now, The Pokemon Company has confirmed the debut of two fan-favorite Pokemon from Sinnoh.

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During the latest Pokemon Presents 2025 livestream, The Pokemon Company shared a trailer for a new Pokemon Sleep event called “Cresselia vs Darkrai,” thus confirming the Legendary and Mythical Pokemon coming to the game. Players will have the mission to eliminate the nightmare that Darkrai has brought, which goes in line with Pokemon Sleep‘s goal of improving users’ sleep. Per the video’s description, during the event, Cresselia will transform players’ Drowsy Power into strength to fight Darkrai. Increasing Drowsy Power in Pokemon Sleep is no easy task, so fans might want to boost their Sleep Score and strengthen their Snorlax beforehand. According to developers, the “Cresselia vs Darkrai” event will be held near the end of March 2025, but more information will be given at a later date.
Darkrai and Cresselia Coming to Pokemon Sleep in a Special Event
Through the official Pokemon Sleep website, developers also revealed that Psychic-Type helper Pokemon will be particularly effective during the event. As of Pokemon Sleep‘s latest update, there are only eight Psychic-Type Pokemon available in the game, including Espeon, Mr. Mime, and Gardevoir. Players should consider leveling up their best Pokemon Sleep helpers of this type ahead of the event to have a better advantage.
Finally, the event trailer revealed a new free gift for Pokemon Sleep players containing 10 Poke Biscuits and 1,000 Diamonds. Players simply need to log in before April 30 to claim the rewards. 2024 was an exciting year for Pokemon Sleep, with the game reportedly reaching massive earnings in its debut year and even collaborating with major pop star Dua Lipa. As it continues to increase in popularity, Pokemon Sleep will likely add more iconic Pokemon throughout 2025 as well.
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