HBO Max is working on a new 10-episode series based on popular relaxation and sleep tool Calm. Building on the app’s Sleep Stories, each episode A World of Calm will be about 30-minutes long and will feature “scientifically-engineered” narratives complemented by soothing music and footage. The show will also include a star-studded cast of narrators, with Mahershala Ali, Idris Elba, Oscar Isaac, Nicole Kidman, Zoë Kravitz, Lucy Liu, Cillian Murphy and Keanu Reeves set to lend their voices to the project. 

Calm collaborated with production company Nutopia to create the series. HBO Max-owner WarnerMedia hopes the show will help viewers relax and unwind after a stressful day. The company didn’t say when subscribers will be able to watch A World of Calm. In the meantime, if you own a recent Samsung smart TV, you can access the Calm app from there.