Gina Johnson
Fitbit devices track sleep patterns and sleep stages. Sleep patterns include time spent awake, restless, and asleep. Restless sleep indicates that the user has moved in their sleep, such as tossing and turning. If the device detects excessive movement, it records that time as time spent awake. Fitbit devices with heart rate tracking (excluding Charge HR and Surge) can also track sleep stages. Sleep stages include non-rapid eye movement (NREM) sleep, which includes light sleep and deep sleep, and rapid eye movement (REM) sleep.
| Characteristics | Values |
|---|---|
| Definition | Fitbit determines restless sleep as when you are moving but may or may not be conscious of the movement. |
| Comparison with phone sleep tracking apps | Fitbit is more accurate than phone sleep tracking apps. |
| Comparison between tracker settings | The normal mode is appropriate for most users, while the sensitive mode records nearly all movements as time spent awake or restless. |
| Effect on sleep time calculation | Time asleep is calculated by subtracting the time spent awake and restless from the overall tracked sleep time. |
| Effect on sleep stages | Fitbit combines awake and restless time into total awake minutes to give a clearer picture of sleep cycles. |
| Suggested actions | Consult a doctor if you have concerns about your sleep health. |
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What You'll Learn
Fitbit's definition of restless sleep
Fitbit devices track sleep patterns and sleep stages. The sleep pattern includes the time spent awake, restless, and asleep. The sleep stages refer to the different types of sleep that the body cycles through: Light Sleep, Deep Sleep, and REM Sleep.
Fitbit defines restless sleep as when you are moving in your sleep, such as tossing and turning. If your device detects excessive movement that may disrupt your sleep, it records that time as awake rather than restless. Fitbit devices with heart rate tracking (except Charge HR and Surge) can track sleep stages.
The Fitbit app allows users to view their sleep data, including their sleep score and sleep stages. The sleep duration tile shows the time spent asleep, awake, and restless. Users can also view their sleeping heart rate and check their averages for the week or longer periods.
The Fitbit sleep tracker has two sensitivity settings: normal mode and sensitive mode. In normal mode, the device records significant movements like rolling over as time spent awake. In sensitive mode, the device records almost all movements as time spent restless or awake. This setting may be useful for people who wake up feeling tired despite their sleep history showing sufficient rest.
It is important to note that the Fitbit sleep tracker is not intended to diagnose or treat any medical conditions and should not be relied upon for medical purposes. If users have concerns about their sleep health, they should consult a healthcare professional.
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Interpreting sleep data
Fitbit devices track your sleep pattern, including your time spent awake, restless, and asleep. The data is calculated by subtracting your time spent awake and restless from your overall tracked sleep time. For example, if you slept for 8 hours but woke up twice for 15 minutes each time, your time asleep would be 7 hours and 30 minutes.
Restless sleep indicates that you move in your sleep, such as tossing and turning. If your device detects excessive movement, enough to disrupt restful sleep, it will record this time as being awake. The amount of movement that is considered "restless" depends on the sensitivity setting of your device. The default ""normal" mode only records significant movements, such as rolling over, as time spent awake. However, the "sensitive" mode will record nearly all movements as time spent restless or awake.
It is important to note that not all movement during sleep is bad. You can change the sensitivity setting of your device to see if that makes a difference in your sleep data. Additionally, if you share a bed with someone, they may be able to provide insight into whether you are restless during the night.
Fitbit devices with heart-rate tracking (except Fitbit Charge HR and Surge) can also track sleep stages. During a typical sleep cycle, your body alternates between two types of sleep: Light Sleep and Deep Sleep. Periods of deep sleep are usually longer earlier in the night, while REM sleep, associated with vivid dreams, tends to have longer periods as the night progresses.
The Fitbit app provides a detailed sleep breakdown on the first of every month, including your sleep score and sleeping heart rate. You can also enable the snore and noise detection feature to track noise levels during your sleep.
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Sleep settings
Sleep is an essential part of our lives, and understanding it can help us improve our overall health and well-being. Fitbit devices offer various features and settings to help users track and analyse their sleep patterns. Here is some information about the sleep settings available on Fitbit devices:
Sleep Tracking
Fitbit devices can track your sleep patterns, including the time spent awake, restless, and asleep. This information is synchronised with the Fitbit app, allowing users to review their sleep data, such as their sleep score and weekly averages. Devices with heart rate tracking, excluding the Charge HR and Surge models, can also monitor sleep stages.
Sleep Sensitivity Settings
Fitbit devices offer two sleep sensitivity settings: Normal and Sensitive. The Normal mode records significant movements, such as rolling over, as time spent awake. This setting is suitable for most users. The Sensitive mode, on the other hand, captures almost all movements as time spent restless or awake. This setting may be useful for individuals who wake up feeling tired despite their sleep history indicating sufficient rest.
Sleep Data Editing
The Fitbit app allows users to edit or delete sleep logs. To do this, users can go to the Sleep Duration tile on the Today tab and tap the menu icon to edit or delete a specific sleep session. For devices that track sleep stages, extending sleep time may create gaps in the sleep stage data.
Snore and Noise Detection
Fitbit devices with a Premium subscription offer snore and noise detection. This feature uses the device's microphone to track snoring and noise levels during sleep. When you wake up, you can access a summary of your nightly results, including the amount of time your device detected snoring and a chart of the noise levels throughout the night.
Sleep Position
The Fitbit device's placement on your wrist can impact the accuracy of sleep tracking. For optimal results, it is recommended to wear the device slightly higher on your wrist, about 2-3 finger widths above the wrist bone. The band should be secure but not too tight.
Sleep Goals
If you are concerned about meeting your sleep goals, Fitbit allows you to adjust your sleep goal to ensure you still achieve it. You can refer to the Fitbit support pages for instructions on how to track your sleep and manage your sleep goals.
Understanding the sleep settings on your Fitbit device can help you effectively track and analyse your sleep patterns, leading to potential improvements in your sleep quality and overall well-being.
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Sleep stages
Sleep is an essential part of our lives, and understanding its different stages can help us improve our sleep quality. Fitbit devices offer insights into our sleep patterns by tracking our movements and heart rate. While the interpretation of sleep data can be confusing, understanding the basics of sleep stages can help make sense of the information provided by Fitbit.
Sleep is not a passive activity, and our bodies go through different stages during a night's rest. These stages include light sleep, deep sleep, and rapid eye movement (REM) sleep. Each stage plays a unique role in our overall sleep quality and duration.
Light Sleep:
Light sleep is the first stage of sleep and is characterised by decreased body temperature, heart rate, and breathing. This stage is easily interrupted, and individuals often transition in and out of light sleep throughout the night. During this stage, individuals may experience muscle twitches or hypnic jerks, which can cause them to awaken briefly.
Deep Sleep:
Deep sleep is a crucial stage where the body repairs and regenerates. It is during this stage that the body produces growth hormones and strengthens the immune system. Deep sleep is typically longer in the first half of the night and becomes shorter as the night progresses.
REM Sleep:
REM sleep is the stage where vivid dreams occur. It is associated with increased brain activity, rapid eye movements, and heightened respiration. REM sleep periods tend to be longer as the night progresses.
Fitbit's Sleep Tracking:
Fitbit devices track sleep by detecting movement and heart rate. The "restless" category on Fitbit refers to periods of sleep where the device detects excessive movement, indicating that restful sleep may be disrupted. This movement can include tossing and turning or changing positions. Fitbit combines data from heart rate tracking and movement detection to provide a more accurate picture of sleep stages.
Improving Sleep Understanding:
To improve sleep understanding, Fitbit offers a Premium subscription that includes snore and noise detection. This feature allows the device to track noise levels and snoring, providing a summary of nightly results. Additionally, Fitbit provides a sleep log that shows time spent awake, restless, and asleep. By reviewing this data, individuals can identify patterns and make necessary adjustments to improve their sleep.
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Seeking medical advice
If you are concerned about your sleep health, it is recommended that you consult a doctor. Although the Fitbit can track your sleep patterns, including your sleep quality, it is not intended to diagnose or treat any medical condition and shouldn't be relied on for any medical purposes.
If you share a bed with someone, they may be able to tell if you are restless or not. Take what they tell you to your doctor and have a good discussion. They may be able to identify a solution that avoids a costly sleep study or a trip to a specialist.
If you have a sleeping disorder, it is important to monitor your heart rate and sleep patterns. Fitbit devices that track heart rate (except Charge HR and Surge) also track sleep stages. You can review your sleep data, such as your sleep score, in the Fitbit app. Check your averages for certain sleep stats, including hours slept and sleep score.
If you are concerned about meeting your sleep goals, you can adjust your sleep goal to ensure you still achieve it. You can also adjust your sleep sensitivity settings to see if that makes a difference.
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Frequently asked questions
'Restless' on your Fitbit sleep data means that you moved in your sleep, such as tossing and turning.
Fitbit devices that track heart rate can also track sleep stages. If your device detects excessive movement, enough that restful sleep won't be possible, your device records time spent awake.
To see your sleep data, open the Fitbit app on your phone. From the Today tab, tap the Sleep duration tile. Tap Sleeping heart rate to find stats for your most recent sleep session.
