Noibat and Noivern will beginning appearing in Pokémon Sleep starting on March 23rd, 2026, at 3:00 p.m.

New Arrivals: Noibat and Noivern

There have been reports of Pokémon appearing that we haven’t seen around here before—maybe this is thanks to the sleep research you’ve all been conducting!
It may be possible to encounter them during sleep research sometime soon.

New Arrivals
• Noibat – Dragon
• Noivern – Dragon

Newly Arriving Pokémon Details

Appearing Beginning: Mar. 23, 2026, at 3:00 p.m. Note: Pokémon Incense for the new arrival can be used starting from the date and time above.

Appearing At: Greengrass Isle, Taupe Hollow, Amber Canyon, and Greengrass Isle (Expert)

Sleep Type: Noibat: Dozing Noivern: Dozing

Source: https://www.pokemonsleep.net/en/news/333736343238343936383639363534353334/