The release of a free app for tracking sleep, Pokémon Sleep, is planned for the end of July. It was announced back in 2019 after the success of Pokémon Go, writes Engadget.

The app will “pair” the user with the pokemon Snorlax, who likes to take naps. Pokémon Sleep will monitor the duration and quality of your sleep, all measured using the phone’s microphone and accelerometer sensors. They will record how often a person twists, turns and even snores.

A full quality sleep increases the user’s rating and allows Snorlax to siphon “drowsy power”. Which other Pokemon will appear in the app will depend on this indicator.

Pokémon Sleep does not integrate with any fitness or sleep tracking apps. It does, however, pair with the Pokémon Go Plus wristband, allowing users to start tracking sleep by pressing a button on the device. The bracelet costs about $30 dollars. You can see how it all works in the developer video.

Pokémon Sleep was previously expected to launch in 2020. But at the beginning of 2023, its release was promised for this year.