Pokémon Anime and Pokémon Sleep Announce August 21 Crossover Episode

What was announced

The official Pokémon anime account (@anipoke_PR) and the official Japanese Pokémon account (@Pokemon_cojp) have announced a special collaboration between the Pokémon anime and the mobile game Pokémon Sleep. The tie-in centers on an episode airing Friday, August 21, 2026, and a companion in-game campaign running in Pokémon Sleep during August. Both accounts framed the collaboration around a simple pitch to fans: watch the anime, get plenty of sleep, and go meet Pokémon.

The August 21 episode

According to the announcement, the August 21 broadcast features Professor Neroli, the researcher associated with Pokémon Sleep, and follows the characters as they head to Greengrass Isle, the island that serves as the game's central setting. The Pokémon anime airs on TV Tokyo affiliated stations every Friday at 6:55 p.m. in Japan. The teams described fuller episode details, including its title, as still to come.

The Pokémon Sleep campaign

On the game side, the official Pokémon Sleep site outlines an August campaign tied to the crossover. Players will be able to encounter a Pikachu wearing a captain's hat, along with new appearances from the Toedscool and Toedscruel line. The site notes that additional specifics, including the campaign's exact dates and mechanics, will be shared at a later date.

Background

The Pokémon anime is one of the longest running series in the medium, first premiering in 1997 and spanning many seasons and story arcs across successive regions and casts. Pokémon Sleep, released for mobile devices, tracks players' real world sleep and pairs it with Pokémon themed research led by Professor Neroli on Greengrass Isle. Crossovers that bridge the anime with Pokémon's games and apps are a recurring way the franchise links its many properties, and this collaboration extends that pattern by bringing a Pokémon Sleep character and location directly into a broadcast episode.

What we know and what we don't

The confirmed points are the August 21 air date, Professor Neroli's appearance, the Greengrass Isle setting, and the broad outline of the in-game campaign. Beyond those, much is still open. Neither team has confirmed how large a role the Pokémon Sleep elements will play in the episode's story, whether the tie-in extends past the single broadcast, or how long the app campaign will run. Because both the anime team and the Pokémon Sleep team say fuller details are still forthcoming, specifics such as the episode's title and the campaign's precise schedule have not yet been announced. Fans following either the show or the app can expect those details closer to the August 21 broadcast.