We currently don’t have a timer feature available within the app.

In the meantime, we recommend that when you play a track, you need to set the "Loop Episode" to off and adjust the "delayed ending" to off by tapping the button that says "background effects" for the background sound to stop running after the story/track completes. And while Slumber is running, you can lock your screen so it doesn't stay lit when the app stops playing.