Apple Watch can now track your sleep stages starting from watchOS 7It shows information helpful to people with insomnia or sleep apneaTo enable sleep tracking, you should set up a sleep schedule on ClockTap on the Sleep section of the Health app to see your sleep dataIt provides a summary of how long you slept, your heart rate, respiratory rate, and time spent sleeping“Understanding Sleep Stages” outlines the four sleep stages“Why Sleep Is So Important” explains the health benefits of getting a full nightly sleep“Getting a Good Night’s Sleep” serve tips to get better sleepAlways wear comfortable band overnight to track sleep data properlyEnable charging reminders to receive alerts on your watch if it's low on charge before bedtime