Thank you for playing Pokémon Sleep!

Beginning mid-September 2026, we will be holding an event—Unexplored Realm Research! Pursue Mewtwo!

According to Professor Neroli, we have discovered that Mewtwo lives in an unexplored realm within Greengrass Isle.
In order to research the rare sleep style of the cautious Mewtwo, we will need to conduct a survey deep into the heart of this unexplored realm.

In surveying the unexplored realm, it will be crucial to work with researchers around the world to accumulate Drowsy Power!

Psychic-type helper Pokémon will be particularly effective during this event, so we recommend raising your Psychic-type helper Pokémon in preparation!
Psychic-type helper Pokémon:
Mr. Mime, Mew, Natu, Xatu, Espeon, Wobbuffet, Ralts, Kirlia, Gardevoir, Wynaut, Mime Jr., Cresselia, Munna, and Musharna

It seems that Mew will be especially helpful, as it has taken a particular interest in Mewtwo’s sleep styles.
Before this event, the Mini Snapshot Surprise Missions event will be held as an opportunity for researchers who have not yet befriended Mew to befriend Mew. Be sure to keep an eye out!

Additionally, you can exchange samples of Mewtwo DNA that you collect during the event for Mewtwo Incense.
You can use Mewtwo Incense to research Mewtwo’s various sleep styles!

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