Apple Watch Sleep tracking: What it does and how to use it

Apple was pretty late to the sleep tracking party compared to competitors. While it was possible to get some sleep data through third party apps on the Apple Watch, native support for sleep tracking only arrived in 2020 and that only included basic sleep tracking, with no sleep stages offered. It wasn’t until the launch of watchOS 9 in 2022 that sleep stages arrived and sleep tracking on Apple Watch became more useful and more in line with what is offered by the likes of Fitbit and Garmin on their devices.