What is sleep tracking, how does it work and what devices offer it?
Best sleep tracker: Monitor your nocturnal wellbeing with ease
How Apple Watch Sleep tracking works
- You can set up and configure Sleep in the Sleep app on your Apple Watch, the Health app on iPhone and the Sleep section of the Apple Watch app on iPhone). You can edit all Sleep Settings in the Sleep section of the Apple Watch app on iPhone or the Health app on iPhone. You can edit the Sleep schedule and alarm on Apple Watch as well as in the Clock app on iPhone.