Pokémon Sleep has announced that Mimikyu will be appearing beginning on October 28th, 2024, at 3:00 p.m.

YouTube Clip - A Mimikyu Bedtime Story | Pokémon Sleep

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

New Arrival: Mimikyu

There have been reports of Mimikyu appearing near certain areas—maybe this is thanks to the sleep research you’ve all been conducting! It may be possible to encounter it during sleep research sometime soon. We hope you’re looking forward to this!

Mimikyu Details

Appearing Beginning: October 28, 2024, at 3:00 p.m.
Note: Mimikyu Incense can be used starting from the date and time above.

Appearing at: Greengrass Isle and the Old Gold Power Plant
Sleep Type: Mimikyu: Dozing
Main Skill: Disguise (Berry Burst)

Gets a set amount of Berries plus a few of each of the Berries other Pokémon on your team collect. On rare occasions, you’ll get a Great Success and receive a greater number of Berries.

Note: After a Great Success, no more Great Successes will occur until the next sleep research or manual sleep data entry.

Source: https://www.pokemonsleep.net/en/news/313931363232383233373637313739323635/