Evie Summers
The Apple Watch Series 3 has a built-in sleep tracker that can help you meet your sleep goals and improve your overall health. To track your sleep, you need to enable the Sleep or Sleep Tracking feature on your watch and wear it to bed for at least one hour. You can also set up a sleep schedule, create bedtime reminders, and adjust wind-down and sleep goals. The watch will then automatically measure and record your sleep data, including the time spent in each sleep stage (REM, Core, and Deep sleep). You can view this data on the Sleep app on your watch or in the Health app on your iPhone or iPad.
| Characteristics | Values |
|---|---|
| Watch model | Apple Watch Series 3 or later |
| WatchOS version | WatchOS 8 or later |
| iPhone model | iPhone 6S or newer |
| iOS version | iOS 14 or newer |
| Battery life | At least 30% before bed |
| Sleep tracking | Enabled in the Apple Watch app |
| Sleep data | Viewed in the Health app |
| Sleep schedule | Customizable in the Sleep app |
| Sleep goal | Customizable in the Sleep app |
| Sleep Focus | Limits distractions before bed |
| Charging reminders | Enabled in the Settings app |
| Sleep history | Accessible for the past week, month, or 6 months |
| Sleep stages | REM, Core, and Deep sleep |
| Respiratory rate | Measured with Watch Series 3 or later |
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What You'll Learn
Navigating the Sleep app
To start using the Sleep app on your Apple Watch 3, you must first set it up. Begin by ensuring your Apple Watch has the latest version of watchOS. You can then set up your sleep schedule by opening the Sleep app on your watch—look for a bed icon with a greenish-blue background—and scrolling down to check or set your sleep schedule. You can also do this on your iPhone by opening the Health app, tapping 'Browse', then tapping 'Sleep', and setting your sleep schedule for the future.
Once you've set up your sleep schedule, you can start tracking your sleep. Make sure your Apple Watch is charged to at least 30% before bed, and wear it to sleep for at least 1 hour. The Sleep app will automatically track your sleep, even if you never open the app again.
To view your sleep data, open the Sleep app on your watch and turn the Digital Crown to view your Sleep Stages data, Time Asleep, and your Sleep Duration for the last 14 days. You can also view your recent sleep data on your iPhone by opening the Health app, tapping 'Browse' at the bottom of the screen, then tapping 'Sleep'. From here, you can view data on recent nights of sleep, as well as edit your sleep schedule.
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Setting up sleep schedules
Firstly, ensure your Apple Watch is charged to at least 30% before you go to bed. You can also set up charging reminders so that your watch can notify you to charge it before bedtime. You can do this by opening the Settings app, then tapping on 'Sleep Focus'. This is optional for tracking but gives you access to specialised home screens and notification settings that will turn on at bedtime.
Next, you'll need to enable sleep tracking. To do this, open the Health app on your iPhone and tap ''Browse' at the bottom of the screen. Then, tap 'Sleep'. From here, you can view data on recent nights of sleep and set your sleep schedule for the future. You can edit your next sleep schedule or your full sleep schedule, which repeats daily and weekly. This tells your phone when you're planning on sleeping.
You can also set up your sleep schedule directly on your Apple Watch. To do this, open the Sleep app on your watch, then scroll down to check or set your sleep schedule. That's all you need to do with this app for setup; the Apple Watch will track your sleep automatically even if you never open this app again.
You can also create multiple sleep schedules—for example, one for weekdays and another for weekends. To do this, go to the Sleep app on your Apple Watch and follow the on-screen instructions.
Finally, remember that to receive sleep data, you must wear your Apple Watch for at least 1 hour each night. If you don't wear your watch to sleep, your graph might not show any data.
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Tracking sleep data
To receive sleep data, you must wear your Apple Watch for at least one hour each night. If you don't wear your watch while sleeping, your graph may not show any data. It is also important to ensure that your watch is charged to at least 30% before you go to bed, as this may also impact your ability to track sleep.
To view your sleep history, open the Health app on your iPhone or iPad. Tap 'Browse' at the bottom of the screen, then tap 'Sleep'. Here, you can view data on recent nights of sleep, including the time and percentage you spent awake or in REM, Core, or Deep sleep. You can also view your sleep trends over the past 14 days.
In addition to the Sleep app, there are other third-party apps that can be used to gain insights into sleep, including Sleep Cycle and AutoSleep.
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Viewing sleep history
To view your sleep history on your iPhone, open the Health app. Tap Browse at the bottom of the screen, then tap Sleep. You can also tap Respiratory and then Respiratory Rate to view your breathing rate while you slept. If you have Sleep saved as a favourite, you can access it from the Summary page in the Health app. The bar graph is set to daily by default, but you can tap 'W' to view your sleep history for the past week, 'M' for the past month, or '6M' for the past six months. Tap 'Show More Sleep Data' and select a category to review additional sleep details, such as the time and percentage you spent awake or in REM, Core, or Deep sleep.
You can also view your sleep data on your Apple Watch. Open the Sleep app on your watch, then turn the Digital Crown to view your Sleep Stages data, Time Asleep, and your Sleep Duration for the last 14 days. You can also use the touchscreen to scroll through your data.
To ensure your watch is tracking your sleep, you need to configure your Watch-specific sleep settings in the Watch app. You can also set up your Sleep Focus, which is optional but gives you access to specialised home screens and notification settings that will turn on at bedtime.
Third-party apps such as Sleep Cycle and AutoSleep can also be used to gain insights into your sleep.
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Sleep tracking on older Apple Watch models
Sleep tracking is available on watchOS 8 or later. Older Apple Watch models can support this, as long as they are running watchOS 7 or newer, are paired with an iPhone 6S or newer, and the iPhone is running iOS 14 or newer.
To set up sleep tracking on an older Apple Watch model, you will need to follow a few basic steps. First, ensure that your Apple Watch is charged to at least 30% before you go to bed. Next, open the Health app on your iPhone and tap "Browse" at the bottom of the screen. Then, tap "Sleep" and follow the on-screen instructions to set up your sleep schedule and sleep goals. You can also enable Sleep Focus to reduce distractions before bedtime and while you sleep.
With your sleep schedule set up, wear your Apple Watch to bed to start tracking your sleep. Make sure that your watch is unlocked and that wrist detection is turned on if you have a passcode. The Apple Watch will use your sleep schedule and your movements to detect when you are sleeping and to estimate the time spent in each sleep stage, including REM, Core, and Deep sleep.
To view your sleep data, you can open the Sleep app on your Apple Watch and turn the Digital Crown to see your Sleep Stages data, Time Asleep, and your Sleep Duration for the last 14 days. Alternatively, you can access your sleep history by opening the Health app on your iPhone or iPad and tapping "Browse" followed by "Sleep". From here, you can view detailed sleep data, including the average time spent in each sleep stage.
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Frequently asked questions
To set up sleep tracking on your Apple Watch 3, you need to make sure you have watchOS 8 or later. Then, open the Sleep app on your watch and follow the on-screen instructions. You can also set up sleep tracking on your iPhone by opening the Health app and tapping "Browse" and then "Sleep".
To view your sleep data on your Apple Watch 3, open the Sleep app and turn the Digital Crown to see your Sleep Stages data, Time Asleep, and your Sleep Duration for the last 14 days. You can also view your sleep history and respiratory rate data on your iPhone by opening the Health app and tapping "Browse" and then "Sleep".
The Apple Watch 3 uses your movements and phone use to detect whether you are sleeping and to estimate the different stages of sleep. It also monitors your breathing rate while you sleep. However, it does not measure brain activity or other medical-grade data. While it may not be completely accurate, it can still provide useful insights into your sleep habits.
To improve the accuracy of sleep tracking, make sure your Apple Watch fits snugly on your wrist while you sleep. Additionally, ensure that your Apple Watch is charged to at least 30% before you go to bed to avoid running out of battery during the night. You can also set up charging reminders to notify you to charge your watch before your wind-down time.
