
The Samsung Galaxy Watch 4 is a powerful tool for tracking your sleep and improving your sleep habits. With its sleep tracking feature, you can monitor the quality and length of your sleep, including sleep stages such as REM, light, and deep sleep cycles. The watch can also detect and record snoring, providing insights into the intensity of snoring through audio snippets. Additionally, the Galaxy Watch 4 offers sleep apnea detection, alerting users to potential breathing disorders. To enhance your sleep, the watch provides sleep coaching options, helping you establish a nightly routine and set sleep targets. With its silent modes, such as Do Not Disturb and Sleep Mode, the watch ensures an undisturbed sleep. The watch also integrates with your phone, allowing you to control smart devices and sync your sleep data. Overall, the Galaxy Watch 4 is a comprehensive sleep companion, guiding you towards a better night's rest.
| Characteristics | Values |
|---|---|
| Sleep tracking | Track sleep patterns, quality, and length |
| Sleep score | Shows how long you spent sleeping and assigns a score |
| Sleep time | Shows sleep time in hours and minutes, as well as calories burned |
| Sleep stage | Shows time spent in Awake, REM, Light, and Deep sleep cycles |
| Blood oxygen during sleep | Shows blood oxygen percentage |
| Snore detection | Records snoring and shows the amount of time spent snoring |
| Sleep consistency | Shows the number of days in the current week within your set sleep goals |
| Sleep apnea detection | Alerts users to potential signs of a breathing disorder |
| Sleep coaching | Analyzes sleep patterns and provides guidelines to improve sleep habits |
| Silent modes | Do Not Disturb, Theater Mode, and Bedtime Mode/Goodnight Mode |
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What You'll Learn

How to set up Sleep Mode
Setting up Sleep Mode on your Galaxy Watch 4 is a straightforward process. Here is a step-by-step guide to help you enable and customise Sleep Mode on your device:
Enabling Sleep Mode
- Accessing Quick Settings: Start by swiping down from the top of your watch screen to access the Quick Settings panel.
- Locating Sleep Mode: In the Quick Settings panel, look for the Sleep Mode icon, which may appear as a bed with a moon or a crescent moon. Tap this icon to enable Sleep Mode.
Customising Sleep Mode
- Scheduling Sleep Mode: To automate Sleep Mode, go to Settings > Advanced Features > Bedtime Mode. Here, you will find the option to Turn on as Scheduled. Enable this and set your preferred schedule, ensuring it aligns with your bedtime and wake-up goals.
- Syncing with Your Phone: If you have a Samsung phone with One UI, you can sync your watch's Sleep Mode with your phone. This will automatically enable Sleep Mode on both devices according to your schedule.
- Customising Notifications: You can customise how notifications behave during Sleep Mode. Go to Watch Settings > Notifications in the Galaxy Wearable app and toggle "Sync Do Not Disturb with Phone" on or off, depending on your preference.
- Controlling Smart Devices: If you want your Wear OS Galaxy Watch to control smart devices, such as lights or your TV, ensure that these devices are added to the SmartThings app on your connected phone. You can then set them to shut off at a specific bedtime.
By following these steps, you can effectively set up and customise Sleep Mode on your Galaxy Watch 4 to suit your sleep habits and preferences.
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Using the Sleep tile
The Sleep tile is a feature on the Samsung Health app on your Galaxy Watch 4 that helps you keep track of your sleep patterns. To access the Sleep tile, swipe left on the watch home screen until you see it, and then tap it.
The Sleep tile provides you with a sleep score, showing how long you spent sleeping, as well as the number of calories burned. It also shows your sleep stages, including Awake, REM, Light, and Deep sleep cycles. You can also view your blood oxygen percentage during sleep, which is an important metric for understanding your sleep quality.
Additionally, the Sleep tile has a snore detection feature, which records the amount of time you spent snoring. This feature requires your Wear OS Galaxy Watch to be connected to your phone via the Galaxy Wearable app. You can also enable snoring detection on your connected phone by opening the Samsung Health app, tapping the top of the Sleep tile, and then tapping Snoring under Advanced measurement. Here, you can choose to have your watch track your snoring for the entire night or just once per "sleep session."
The Sleep tile also includes a sleep coaching feature, which provides guidance and tips to help you improve your sleep habits. To access this feature, open the Samsung Health app on your connected phone, tap the Sleep tile, and then tap "Get started with sleep coaching." After seven days of sleep tracking, the program will assign you a "sleep animal" based on your sleep patterns and provide personalised recommendations.
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Snore detection
The Galaxy Watch 4 can help you monitor your snoring while you sleep with the Samsung Health app. To use this feature, make sure your Galaxy Watch is connected to your phone via the Galaxy Wearable app.
- Open the Samsung Health app on your phone and tap the Sleep card.
- Tap More options (three vertical dots) and select Advanced measurement.
- Tap Snore detection.
- Tap the switch at the top of the screen to turn on Snore detection.
- Allow the necessary permissions when prompted.
- You can set when to detect snoring, record when snoring is detected, how long to store recordings, and more.
Before you go to bed, attach your Galaxy Watch to your wrist, connect your phone to its charger, and place your phone near your head. The best place for your phone is on a stable surface, like a bedside table. Try to point the bottom of the phone towards you. Also, make sure your watch's sensor is clean and directly touching your skin.
The next morning, you can check your snoring data. Open the Samsung Health app on your phone and tap the Sleep tracker. Swipe to and tap the data under Snoring. You can also tap Show on phone to open the information in Samsung Health on your connected phone, then swipe up to see all of your data.
Please note that the Galaxy Watch 4 uses your phone's bottom microphone to check for snoring rather than the watch's microphone. Therefore, you must have your paired phone next to you while sleeping to get any snore data.
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Sleep coaching
To get started with sleep coaching, you must first wear your watch for at least seven days and nights. This allows the watch to gather data about your sleep patterns. After this initial period, you can access the sleep coaching feature by opening the Samsung Health app on your connected phone and tapping the Sleep tile. From there, tap "Get started with sleep coaching." You will then be prompted to answer some questions about your sleep, which will help determine how best to coach you.
Once you've completed the initial setup, your sleep coach will create a four-to-five-week coaching program. Each night, you'll receive a notification on your watch with information about your sleep. As bedtime approaches, you'll receive various tools to help you improve your sleep, such as missions, checklists, sleep-related articles, meditation guidance, and sleep reports.
The sleep coaching feature also includes sleep tracking capabilities. It can monitor your sleep time, sleep stages (Awake, REM, Light, and Deep sleep cycles), blood oxygen levels, snoring, and sleep consistency. This data is used to provide insights and recommendations to improve your sleep quality. Additionally, the Galaxy Watch 4 can detect and turn off smart devices, such as your TV, to help you stick to your sleep schedule.
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Sleep apnea detection
The Sleep Apnea risk detection feature on the Samsung Galaxy Watch is a tool designed to enhance your awareness of sleep health. The feature monitors signs that may indicate moderate to severe obstructive sleep apnea. It is important to note that the watch is not a medical device and should not replace professional medical advice. If you are diagnosed with sleep apnea, you should stop using this feature.
To use the Sleep Apnea risk detection feature, you must first ensure that your watch is running Wear OS 5.0 or later, and it is paired with a phone with Android OS 9.0 or later. You should also make sure that you have installed the Samsung Health Monitor app on your watch and paired it with your Galaxy mobile device.
Once these steps are completed, you can enable the Sleep Apnea risk detection feature by opening the Samsung Health Monitor app on your watch and selecting Sleep Apnea. After reading the precautions, swipe up and select Continue. Then, tap the switch to enable the feature and swipe up and tap OK. The feature is now ready to use.
To ensure accurate results, make sure your watch is snug on your wrist and worn away from your wrist bone. You should wear the watch for at least two nights in a row, with a minimum of four hours of sleep each night. After two nights of measurement, the feature will automatically turn off.
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Frequently asked questions
To track your sleep using the Galaxy Watch 4, wear your watch to bed. Before doing so, ensure you have enabled the necessary features in the Samsung Health app. Open the app on your watch, swipe to Settings, and tap the switch next to Blood Oxygen during sleep to turn it on.
The watch can track your sleep score, sleep time, sleep stage, blood oxygen levels, snoring, and sleep consistency.
On your watch, swipe left on the Home screen until you see the Sleep tile and tap it. You can also view your data in the Samsung Health app on your connected phone.
To enable Sleep mode, swipe down for Quick settings and tap the Sleep mode icon. Alternatively, go to Settings > Advanced features > Sleep mode and toggle Turn on now.
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