Do I need to keep my app running in the background when I have a timer running? February 26, 2022 01:12 Updated No, you can close your app and it does not need to be running in the background. Related articles If my child nurses throughout the night but isn’t fully awake, do I count those periods as night wakings? Why is SweetSpot giving me shorter wake windows? How do I change the day’s start and end times? Do I need to track every night waking? What’s the Wake Windows vs. SweetSpot report? How do I read the report?