Using Fitbit's Sleep Tracker: A Guide

how to use sleep tracker on fitbit

Fitbit's range of fitness trackers all have sleep-tracking functions that work in the same way and deliver the same information. By default, your Fitbit will be set up to track your sleep, but you can also manually set a sleep goal. To do this, open the Fitbit app on your phone, tap on the round icon at the top left of the screen, tap 'Activity and Wellness', then 'Sleep', and finally, 'Time Asleep Goal'. You can also use the Fitbit app to see a detailed breakdown of your sleep results and history. To view this information, open the app, scroll to the sleep section, and select it. To see your sleep results immediately after waking, simply open the app and pull down to refresh the page. Your Fitbit will automatically track your sleep once you've been still for about an hour, but you can also manually set it to begin tracking by selecting 'begin sleep now' in the app. To ensure the most accurate readings, wear your Fitbit snugly and higher on your wrist.

Characteristics Values
How to set up sleep tracking Set the time you go to bed or hit "begin sleep now"
How to check sleep results Open the Fitbit app and pull down to refresh the page
How to check detailed sleep results Open the Fitbit app, scroll to the sleep section, and select it
How to check previous night's sleep metrics Sync your Fitbit tracker or watch with your smartphone
How to check sleep results on the device Swipe up from the homescreen, then scroll to the sleep section
How to check sleep results on the Fitbit Today tab Swipe up from the clock face on your tracker or watch
How to check sleep results on the Sleep Tile Swipe left on the Sleep Tile
How to set a sleep goal Open the Fitbit app, tap on the round icon, tap Activity and Wellness > Sleep > Time Asleep Goal, and use the pull-down menu to adjust your total sleep target
How to set a smart alarm Swipe left to get to the Alarm screen on your tracker, set an alarm, and scroll down to Smart Wake
How to adjust noise sensitivity Tap the setting icon on the top right of your app's Sleep page, tap Sleep Sensitivity, and check either Sensitive or Normal
How to track blood oxygen levels Install a Spo2 watch face and, for Fitbit Sense and Versa 3, the Spo2 tracker app
How to install the SpO2 tracker app Open the Fitbit app, go to the device's dashboard, tap Gallery, tap Apps, and use the search bar to search for the SpO2 app
How to check blood oxygen variations Scroll down in the Fitbit app
How to ensure the Fitbit is tracking sleep Make sure the Fitbit is worn snugly on the wrist, with heart rate monitoring enabled

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How to set up sleep tracking

To set up sleep tracking on your Fitbit, you can either manually start a sleep log by setting the time you go to bed, or you can tap "Begin Sleep Now" on your device. Your Fitbit will be set up to track your sleep by default, but to make sure everything is working as it should, open the settings menu on your device and check that heart rate monitoring is enabled. Make sure your Fitbit is fastened snugly around your wrist so that the sensors make good contact with your skin. Once you've been still for about an hour, it will begin tracking.

If you have a Fitbit Sense or Versa 3, you can install the SpO2 app by selecting your device in the Fitbit app, tapping 'Apps', and searching for the 'SpO2 tracker'. The app will run in the background while you sleep. The SpO2 app is pre-installed on the Fitbit Charge 4, Charge 5, and Luxe, but if you removed it, you can reinstall it by following the instructions above. If you want to view your blood oxygen level on the Versa 2, Versa, Versa Lite, and the Ionic, you'll need to install a Spo2 watch face. Open the Fitbit app, go to the device's dashboard, and select Gallery. Tap on Clocks, scroll down to the Spo2 watch face section, select your choice, and install it.

To set a sleep goal, open the Fitbit app on your phone. Tap on the round icon that may or may not have your photo in the top left of the screen. Tap Activity and Wellness > Sleep > Time Asleep Goal, and use the pull-down menu to adjust your total sleep target. You can also get to this menu by tapping the gear icon in the top left of your app's Sleep menu.

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How to check sleep results

To check your sleep results on Fitbit, you must first sync your Fitbit device with your smartphone. Swipe up from the clock face on your tracker or watch to access the Fitbit Today tab, where you can view your total sleep duration from the previous night as well as your Sleep Score. You can also swipe left on the Sleep Tile to see the previous night's detailed sleep data and your weekly sleep history.

To access more detailed information about your recent sleep, open the Fitbit app and navigate to the Today screen. Scroll down to the Sleep section, represented by a snoozing moon icon. Here, you can view your sleep stats for the night, including hours slept and sleep schedule. By tapping on the sleep card, you can access historical sleep data, allowing you to compare your current sleep patterns with previous months or even a year.

Additionally, you can review your sleep stages by pressing and holding the Sleep timeline graph and dragging your finger left or right. This allows you to compare your sleep stages from the previous night to your 30-day average. The benchmark tab also provides a comparison to the averages of others in the same age range and sex.

If you have a Fitbit Premium subscription, you can access your Sleep Profile on the first of every month. This detailed breakdown includes 10 monthly metrics and a sleep animal avatar that characterises your long-term sleep behaviours.

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How to improve sleep tracking accuracy

To improve the accuracy of sleep tracking on your Fitbit, there are several steps you can take. Firstly, ensure that you are wearing your Fitbit device correctly. It is recommended to wear the device on your wrist in a snug wristband during sleep, with the device positioned higher on your wrist towards your elbow. Avoid wearing your Fitbit as a clip or pendant accessory while sleeping, as this may affect the accuracy of sleep tracking.

Additionally, you can adjust the sensitivity settings on your Fitbit device. By default, the device is set to Normal mode, where significant movements, such as rolling over, are recorded as time spent awake. If you find that you are waking up feeling tired despite sufficient sleep time, you can switch to Sensitive mode. This mode records nearly all movements as time spent restless or awake, providing a more detailed picture of your sleep patterns.

It is also important to understand the limitations of sleep tracking technology. While Fitbit devices can provide valuable insights into your sleep patterns, they may not always accurately differentiate between sleep stages. Movement and heart rate data are used to infer whether you are awake, in a deep sleep, or in a light slumber, but this may not align perfectly with your actual sleep stages. Fitbit devices are continuously improving in accuracy, with some models offering sleep staging accuracy of 69% in any given 30-second time window.

To get the most out of your Fitbit sleep tracker, consider setting a sleep goal and a consistent sleep schedule. You can set a sleep goal within the Fitbit app by adjusting your total sleep target. Maintaining a regular sleep schedule can help improve your overall sleep quality and allow your Fitbit to track your sleep patterns more effectively.

Remember, the primary purpose of a sleep tracker is to provide insights and help you understand your sleep patterns. If you find that using a sleep tracker increases your anxiety or obsession with achieving a certain amount of sleep, it may be beneficial to take a break from using the device or consult a healthcare professional for guidance.

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How to track blood oxygen levels

To track your blood oxygen levels with your Fitbit device, you must have a compatible device. The following Fitbit devices support blood oxygen monitoring: Versa, Versa 2, Versa 3, Versa 4, Versa Lite Edition, Inspire 3, Sense series, Charge 3, Charge 4, Charge 5, Charge 6, Luxe, Ionic, and Google Pixel Watch series.

To enable the SpO2 monitor on your Fitbit device, follow these steps:

  • Ensure that your Fitbit device is charged and up to date with the latest software.
  • For Versa, Versa Lite Edition, and Versa 2, install an SpO2 clock face to collect SpO2 data. For Inspire 3, Sense series, Versa 3, and Versa 4, you can choose to install either an SpO2 clock face or the SpO2 app. For Charge 4, Charge 5, Charge 6, and Luxe, you must install the SpO2 app. SpO2 data is tracked automatically on Google Pixel Watch series.
  • Wear your Fitbit device snugly and securely before you go to sleep.
  • In the morning, open the Fitbit app and tap on a sleep log to view your Estimated Oxygen Variation (EOV) graph. This graph shows an estimate of the variations in your blood oxygen saturation levels throughout the night.

It is important to note that the Fitbit device is not intended for medical purposes. If you notice any abnormalities or significant variations in your EOV graph data, consult your physician to interpret the findings and discuss any necessary treatment options. Additionally, factors such as anatomical body structures, the oxygen content in the air you breathe, lung function, and your bloodstream's ability to carry oxygen can impact the accuracy of your Fitbit device's sensors and your SpO2 values.

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How to use the Smart Wake feature

The Smart Wake feature on Fitbit is available on the Ionic and Versa series smartwatches. This feature can be enabled on your watch directly and does not need to be set up on the Fitbit app.

To use the Smart Wake feature, set an alarm on your watch and turn on the Smart Wake option. When activated, the feature will attempt to find the best time to wake you up, starting 30 minutes before the alarm time you set. It takes your heart rate readings into consideration to determine the optimal time to wake you up. If it can't find a suitable time, the alarm will go off at the set time.

The Smart Wake feature is not dependent on a Bluetooth connection with your phone. It will work even if Bluetooth and Wi-Fi are turned off.

Please note that alarms won't go off if your watch's battery is less than 8%.

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Frequently asked questions

Your Fitbit will be set up to track your sleep by default, but to make sure everything is working as it should, open the settings menu on your device and check that heart rate monitoring is enabled. Make sure your Fitbit is fastened snugly around your wrist so that the sensors make good contact with your skin.

To see your sleep data, open the Fitbit app and pull down to refresh the page. You can then see your sleep record. You can also swipe up from the homescreen and scroll to the sleep section.

To check the previous night’s sleep metrics, you’ll first need to sync your Fitbit tracker or watch with your smartphone. Swipe up from the clock face on your tracker or watch to get to the Fitbit Today tab, where you can see your total sleep from the previous night as well as your Sleep Score.

Open the Fitbit app on your phone. Tap on the round icon that may (or may not) have your photo, at the top left of the screen. Tap Activity and Wellness > Sleep > Time Asleep Goal, and use the pull-down menu to adjust your total sleep target.

Swipe left to get to the Alarm screen on your tracker. Set an alarm if you haven’t already, and scroll down to Smart Wake. Toggle the slider and check the time range. Adjust noise sensitivity.

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