Ashwin Lewis
Fitbit devices have become increasingly popular for tracking sleep patterns and helping users improve their sleep quality. All Fitbit devices can track sleep in terms of duration, and newer models can also track sleep stages using a heart rate sensor. The Fitbit Flex 2, for example, automatically tracks sleep through movement alone, while newer models can use heart rate data to discern between light sleep, deep sleep, and REM sleep. Fitbit Premium subscribers can access even more detailed sleep insights, including breathing rate, heart rate variability, skin temperature, and blood oxygen saturation.
| Characteristics | Values |
|---|---|
| How to track sleep | Wear the Fitbit Flex 2 during sleep |
| How it works | Detects sleep when the body is completely at rest and hasn't moved for about an hour |
| Data tracked | Time spent awake, restless, and asleep |
| Additional features | Snore and Noise Report, Sleep Profile, Sleep Stages |
| Additional features requirements | Fitbit Sense or Versa 3, Fitbit Premium subscription |
What You'll Learn
How to enable the sleep tracker on the Fitbit Flex 2
The Fitbit Flex 2 is a wrist-based device that automatically tracks your sleep when worn to bed. It uses movement to track your sleep, and you can view your sleep pattern in the Fitbit app.
To enable the sleep tracker on the Fitbit Flex 2, simply wear the device snugly on your wrist while you sleep. There is no need to tap your tracker before you go to bed or enable any special mode. However, it is important to note that your sleep must be at least 3 hours long for the device to generate a Snore & Noise Report.
To view your sleep data in the Fitbit app, go to the “Today” tab and tap the “Sleep Duration” tile. You can then tap “Sleeping Heart Rate” to view your stats for your most recent sleep session. To check sleep stats for other days, you can choose the desired week, month, or year using the tabs. Tap on a specific sleep session to check your sleeping heart rate for that period. Touch and hold the chart, then drag left or right to explore your sleep details.
If you are experiencing issues with your sleep data not appearing in the app, you can try restarting the app or reinstalling it. Additionally, ensure that your Fitbit Flex 2 is securely fastened on your wrist and not too loose, as this may impact the accuracy of the sleep tracking.
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How to check sleep data on the Fitbit app
To check your sleep data on the Fitbit app, you must first have a Fitbit device that can track sleep. This includes the Fitbit Flex 2, which automatically tracks your sleep when worn during sleep.
Once you have a compatible device, you can check your sleep data by opening the Fitbit app and syncing your device. From the Today tab, tap the Sleep duration tile. Here, you can view your sleep data, including the time spent awake, restless, and asleep. You can also view your sleeping heart rate by tapping "Sleeping heart rate".
If you want to check your sleep data for a different day, you can choose the desired week, month, or year using the tabs. Tap on a specific sleep session to view more details, such as your sleeping heart rate for that period. You can also touch and hold the chart and drag left or right to explore your sleep details.
For a more detailed analysis of your sleep stages, press and hold the "Sleep timeline" graph. Move your finger left or right to check the time spent in each sleep stage, such as REM, light, and deep sleep. You can also tap "Benchmark" or "30-day average" to compare your data with averages based on age and gender.
Additionally, if you have a Fitbit device with a microphone, such as the Fitbit Sense or Versa 3, you can enable snore and noise detection. This feature allows your device to track noise levels and snoring during sleep. After syncing your device, you can access the Snore & Noise Report in the Fitbit app to view a summary of your nightly results.
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How to edit or delete a sleep log
The Fitbit Flex 2 automatically tracks your sleep when you wear it to bed. To edit or delete a sleep log in the Fitbit app, follow these steps:
- Go to the Today tab in the Fitbit app.
- Tap the Sleep Duration tile.
- Tap the three dots icon in the top right corner, then select "Edit Sleep".
- Swipe up to view your sleep sessions and tap on the session you want to edit.
- Make the desired changes to your sleep log.
- If you need to delete the sleep log, tap the menu icon and choose "Delete Sleep Log" or "Delete Log".
Note that for devices that track sleep stages, extending sleep time may create gaps in the sleep stage data. If you accidentally delete a sleep log, you can restore it by tapping on the Sleep Tile in the Fitbit app, then tapping the plus (+) sign and adding the sleep start and end dates and times. Keep in mind that if you've modified a sleep log, the app may not be able to adjust Sleep Stages if the changes were significant or involved a different schedule.
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How to use the Fitbit Flex to track sleep stages
The Fitbit Flex 2 can track your sleep through movement alone. To enable sleep tracking, simply wear the device on your wrist while you sleep. It is recommended that you wear the device in a snug wristband during sleep. Do not wear your device in a clip or pendant accessory. When your body is completely at rest and you haven't moved for about an hour, your Fitbit Flex will begin to track your sleep.
If you want more detailed insights into your sleep, you can consider purchasing a Fitbit Premium subscription. This costs $9.99/£7.99 per month, or $80/£79.99 per year. With a Premium subscription, you will get a more comprehensive breakdown of your sleep as well as personalized insights and recommendations about how to improve your sleep routine. You will also be able to see how your measurements compare to the averages for other people of your age and gender.
If you have a Fitbit Sense or Versa 3, you can install the SpO2 app to track your blood oxygen saturation (SpO2) overnight. If you have a Fitbit Premium subscription and either of these devices, you can also track snoring. Your Fitbit will use its microphone to analyse noise levels at regular intervals, and tell you whether someone in the room is snoring, how loudly, and how frequently.
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How to use the Fitbit Flex to track snoring
The Fitbit Flex 2 can be used to track your sleep by simply wearing it on your wrist while you sleep. The device will then automatically start tracking your sleep once it recognises that your body has entered sleep mode. This is done by detecting when your body has been completely still for about an hour.
To use the Fitbit Flex to track snoring, you will need to purchase a Fitbit Premium subscription. This will allow you to access the Snore & Noise Report feature, which uses the device's microphone to analyse noise levels at regular intervals. The feature will then be able to tell you whether someone in the room is snoring, how loudly, and how frequently. To receive a Snore & Noise Report, your sleep must be at least 3 hours long.
In addition to tracking snoring, the Fitbit Premium subscription provides a range of other insights, including detailed historic sleep data and comparisons of your sleep patterns with baseline values for people of your age and gender. You will also be able to track long-term trends in your nightly breathing rate, heart rate variability, skin temperature, and blood oxygen saturation.
To set up your Fitbit Flex to track your sleep, make sure that the device is fastened snugly around your wrist so that the sensors make good contact with your skin. It is important to note that the device cannot track sleep if it is worn on a pendant or clip. Additionally, ensure that heart rate monitoring is enabled in the settings menu of your device.
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Frequently asked questions
Your Fitbit Flex automatically tracks your sleep when you wear it to bed. It uses movement to track your sleep. If your body is completely at rest and hasn't moved for about an hour, your Fitbit records that you're asleep.
For devices that record sleep patterns instead of sleep stages, you can set your Fitbit Flex to track sleep in two modes: normal and sensitive. In normal mode, when you make significant movements like rolling over, your device records the time spent awake. In sensitive mode, your device records nearly all movements as time spent restless or awake.
You can view your sleep data on the Today tab in the Fitbit app. Your sleep stats, including the time spent asleep, restless, and awake, will be displayed in hours and minutes.
Your Fitbit Flex will record sleep of an hour or longer.
Fitbit Flex can track three sleep stages: light sleep, deep sleep, and REM sleep. However, please note that only newer Fitbit devices with a heart rate monitor can track sleep stages.
