A new Pokémon app called Pokémon Sleep is in development that will track player`s sleep and use the data for game play.
Information about how long the user has slept for and when they wake will play a part, but it`s not been made clear exactly how.
Nintendo has been capitalising on the game`s appeal since Pokémon Go proved to be a global phenomenon in 2016.
"We want to turn sleep into entertainment," an exec explained.
Speaking at a press conference in Tokyo, chief executive of the Pokémon Company, Tsunekazu Ishihara, revealed the release will be next year.
It`s also hoped that this new game will attract those who have an interest in sleep and a healthy lifestyle.
Other projects were announced relating to Pokémon including new games, devices and a cloud service.
More than 340 million units of various Pokémon games have been sold since 1996.
Five Pokéfacts you might not know
1. Pikachu`s name is mix of the Japanese for sparkle, pikapika, and the sound of squeaking, which is chūchū.
2. The name of Pokémon only came about because of a copyright issue during the creation of the video game - its original name was Capsule Monsters, before it changed to CapuMon, then Pokémon.
3. Drowzee, the dream-eater Pokémon, is based on a tapir. In South American folklore, the mammal would use its long snout to eat dreams as people slept.
4. The first Pokémon to be created was actually the rhino-like Rhydon, not Pikachu.
5. The most sought-after Pokémon trading card to this day is Charizard.
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