Apple Health brings sleep tracking, scheduling and long-term analysis into one place, with your iPhone acting as the hub and the Apple Watch doing the overnight monitoring. Once everything is set up, Apple Health can show how long you slept each night, how consistent your sleep schedule is and how much time you spend in different sleep stages. Here is how to get started, track your sleep and review your data.
Sleep tracking in Apple Health relies on two things: You need to set up Sleep in the Health app on your iPhone, and you need a compatible Apple Watch to wear to bed. While you can set sleep schedules without a watch, detailed sleep data — including sleep stages — requires an Apple Watch.
How to set up Sleep in Apple Health
Sleep tracking is available on all watchOS 8 (or later) models and setup starts in the Health app on your iPhone. Open Health, tap Browse and then tap Sleep. If this is your first time setting it up, you will see an option to get started. Apple Health will guide you through choosing a sleep goal, setting a bedtime and wake-up time and deciding whether you want one sleep schedule for every day or different schedules for weekdays and weekends.
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During setup, you can also enable sleep reminders and a wind-down period. Wind Down reduces distractions before bedtime by activating features like Focus mode and dimming notifications at a set time before sleep. These settings are optional but they help keep your schedule consistent, which improves the quality of the data Apple Health collects over time.
Once Sleep is configured, Apple Health automatically syncs those settings to your Apple Watch. You can adjust your sleep schedule later by returning to the Sleep section in Health and tapping Full Schedule and Options. Any changes you make here update on both your iPhone and Apple Watch.
How to prepare your Apple Watch for sleep tracking
To track sleep, your Apple Watch needs to be worn overnight and have enough battery to last until morning. If the battery drops below 30 percent before bedtime, your watch will prompt you to charge it first. Sleep tracking also relies on Sleep Focus which activates automatically based on your sleep schedule. Once Sleep Focus has been set, open the Settings app on your Apple Watch, tap Sleep and ensure that Track Sleep with Apple Watch is turned on. With both features enabled your watch can monitor sleep automatically without any manual start or stop each night.
Comfort matters when wearing a watch to bed, so many people prefer a softer band for sleep. As long as the watch fits securely and stays in contact with your wrist, it can track sleep without issue.
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