Evie Summers
Apple Watch users can track their sleep stages using the Sleep app. The app can estimate the time spent in each sleep stage, including REM, core, and deep sleep, and provides sleep trends over the past 14 days. To use the Sleep app, users must wear their Apple Watch to bed and ensure it is charged to at least 30% beforehand. The watch can also track respiratory rate and nightly wrist temperature. The Health app on the iPhone can be used in conjunction with the Sleep app to set sleep goals and create customized sleep schedules.
| Characteristics | Values |
|---|---|
| Sleep tracking | Available on watchOS 8 or later |
| Sleep tracking on Apple Watch | Requires a good night's sleep |
| Charging | Reminders can be set up |
| Charging | Should be at least 30% before bed |
| Sleep tracking | Requires a pre-defined sleep schedule |
| Sleep tracking | Requires at least four hours of sleep per night |
| Sleep tracking | Requires a comfortable fit |
| Sleep tracking | Requires wearing the watch to bed |
| Sleep tracking | Requires wearing the watch for at least one hour |
| Sleep tracking | Requires turning on Sleep Focus |
| Sleep tracking | Requires turning on Track Sleep with Apple Watch |
| Sleep tracking | Requires watchOS 9 or later for sleep stage tracking |
| Sleep tracking | Requires watchOS 8 or later for respiratory rate tracking |
| Sleep tracking | Requires watch series 3 or later for respiratory rate tracking |
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What You'll Learn
How to set up sleep tracking on Apple Watch
To set up sleep tracking on your Apple Watch, you'll first need to ensure your watch is charged to at least 30% before you go to bed. You can turn on Charging Reminders to notify you to charge your watch before your wind-down time.
Next, you'll need to set up a sleep schedule. Open the Sleep app on your Apple Watch and follow the on-screen instructions. You can also open the Health app on your iPhone, tap Browse, tap Sleep, then tap Get Started (below Set Up Sleep). In the Sleep app, you can set up a sleep goal (how many hours of sleep you want to get), and whether to turn on Sleep Focus, which limits distractions before you go to bed. You can also set a wind-down period, which will give you a bedtime reminder and turn on Sleep Focus.
Make sure your Apple Watch fits comfortably on your wrist. If it's too loose, the accelerometer may register too much movement during your natural sleep. You should wear your Apple Watch to bed for at least one hour each night to ensure it can track your sleep. When you wake up, open the Sleep app to learn how much sleep you got and see your sleep trends over the past 14 days. You can also ask Siri "How much did I sleep last night?" on supported models.
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How to view sleep data on Apple Watch
To view your sleep data on the Apple Watch, you need to ensure that Sleep Tracking is turned on. This will allow your Apple Watch to track your sleep and add sleep data to the Health app on your iPhone.
To turn on Sleep Tracking, open the Apple Watch app on your iPhone, tap the 'My Watch' tab, then tap 'Sleep'. You can also turn on Charging Reminders, which will remind you to charge your watch before your wind-down time and notify you when it's fully charged.
Once Sleep Tracking is enabled, wear your Apple Watch to bed. It is recommended that you wear your watch to bed for at least one hour to ensure it has enough time to track your sleep. Make sure your watch is charged to at least 30% before bed, as a low battery may result in a loss of sleep data. Additionally, ensure that your watch fits comfortably on your wrist. If it is too loose, the accelerometer may register too much movement during your natural sleep, leading to inaccurate data.
After you have worn your Apple Watch to bed, you can view your sleep data by opening the Sleep app on your watch and turning the Digital Crown to view your Sleep Stages data, Time Asleep, and Sleep Duration for the last 14 days. You can also ask Siri, "How much did I sleep last night?" on supported models.
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How to charge Apple Watch for sleep tracking
To use your Apple Watch for sleep tracking, it is important to ensure that it is charged before you go to bed. If your Apple Watch is charged below 30% before bedtime, you will receive a prompt to charge it. You can also turn on Charging Reminders, which will remind you to charge your watch before your wind-down time and notify you when it is fully charged. To do this, open the Watch app on your iPhone, tap the My Watch tab, tap Sleep, and then tap Charging Reminders. This is important because if your watch battery dies during the night, it will not track your sleep data.
To get the most accurate results from your Apple Watch's sleep tracking, make sure that the watch fits comfortably on your wrist. If it is too loose, the accelerometer may register too much movement during your natural sleep, leading to inaccurate data. Additionally, you can create a sleep schedule and set a sleep goal to help you meet your sleep targets and improve your overall health. You can also enable Sleep Focus, which reduces distractions and protects your sleep by simplifying your Lock Screen and limiting notifications.
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How to set sleep schedules on Apple Watch
To set up sleep tracking on your Apple Watch, you first need to ensure that your watch is charged to at least 30% before you go to bed. You should also make sure that your Apple Watch has a comfortable fit—if it's too loose, the accelerometer may register too much movement during your sleep, which could affect the accuracy of the results.
Next, open the Sleep app on your Apple Watch and follow the on-screen instructions. You can also open the Health app on your iPhone, tap 'Browse', tap 'Sleep', then tap 'Get Started' (below 'Set Up Sleep').
Once you're in the Sleep app, you can set up a sleep schedule by tapping 'Add Schedule'. You can also create multiple sleep schedules, such as one for weekdays and another for weekends. For each schedule, you can set up a sleep goal (the number of hours you want to sleep), a bedtime, and a wake-up time. You can also set up Wind Down time, which gives you a bedtime reminder and limits distractions before your scheduled bedtime.
To set a new wake-up time, tap the current wake-up time, turn the Digital Crown to set a new time, then tap again to confirm. If you don't want your Apple Watch to wake you up in the morning, you can turn off the alarm. You can also change the vibration or ringtone by tapping 'Sounds & Haptics' and choosing a different option.
You can also ask Siri, "How much did I sleep last night?" (This feature is not available in all languages or regions.)
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How to view respiratory rate data on Apple Watch
To view your respiratory rate data on your Apple Watch, you must first ensure that you are wearing your Apple Watch to sleep. When you wear your Apple Watch to bed, it will automatically measure and record your respiratory rate.
To view your respiratory rate data, you will need to open the Health app on your iPhone or iPad. If you are using an iPhone, tap 'Browse' at the bottom of the screen. If you are using an iPad, tap the sidebar to open it and then tap 'Respiratory' under Health Categories, followed by ''Respiratory Rate' to see your sleeping respiratory rate data.
Your respiratory rate refers to the number of times you breathe in a minute. Typically, an adult takes 12-20 breaths per minute on average while at rest. This number goes up when exercising and down while sleeping. If your respiratory rate is significantly higher or lower than usual while you sleep, it could indicate illness or a health condition.
To track your respiratory rate, you will need to set up the sleep features on your iPhone. Go to the Watch app and tap the 'My Watch' tab, then tap 'Sleep'. Turn on 'Track Sleep with Apple Watch'. This option is available during setup if you've paired your Apple Watch with your iPhone beforehand. If you pair your Apple Watch after setup, you can turn on 'Track Sleep with Apple Watch' later.
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Frequently asked questions
To set up sleep tracking on your Apple Watch, you need to set up a sleep schedule. On your iPhone, open Clock and tap Change to make sure your sleep schedule is set correctly. If you haven’t set this up before, tap Turn On. Tap Edit Sleep Schedule in Health to go to the next step. You can also create multiple sleep schedules—for example, one for weekdays and another for weekends.
When Sleep Tracking is on, your Apple Watch tracks your sleep and adds sleep data to the Health app on your iPhone. You can view your recent sleep data on your Apple Watch by opening the Sleep app and turning the Digital Crown. The Health app will give you a summary of how long you slept, your heart rate, your respiratory rate, and your time spent asleep over the last week.
The Apple Watch can estimate the time spent in each sleep stage—REM, Core, and Deep—as well as when you might have woken up.
