Evie Summers
Fitbit devices are well-known for their sleep-tracking capabilities, and the Fitbit Charge 2 is no exception. This feature-rich fitness tracker can monitor your sleep patterns and provide insights into your sleep quality, helping you understand your sleep behaviour and make improvements. With its advanced tracking technology, the Fitbit Charge 2 can determine when you fall asleep, how long you sleep, and even differentiate between various sleep stages. By wearing your Fitbit Charge 2 to bed and syncing it with the Fitbit app, you can access detailed sleep data, including the amount of time spent in light sleep, deep sleep, and REM sleep. Additionally, the Smart Wake feature ensures you wake up feeling refreshed by gently rousing you during a light sleep stage within a specified time window. This guide will explore the steps to effectively use the sleep-tracking feature on your Fitbit Charge 2, ensuring you get the most out of this functionality to improve your sleep habits.
| Characteristics | Values |
|---|---|
| How to track sleep | Manually or automatically |
| Manual tracking | Select the Sleep icon in the app dashboard (moon icon and letter "Z") and tap the "+" icon in the top right corner of the Sleep section |
| Automatic tracking | Simply fall asleep and the Fitbit will measure your breathing and heart rate to determine when you fall asleep, enter different sleep stages, and when you're restless |
| Syncing | Sync your Fitbit each morning to review your sleep data in the Fitbit app |
| Fitbit models with sleep tracking | All Fitbit models can track sleep in terms of how long it lasts. Fitbits with heart rate monitors can also determine the differences between sleep stages. |
| Fitbit Charge 2 sleep tracking | Fitbit Charge 2 does not have a heart rate monitor, but it can still track sleep patterns in the Fitbit app |
| Battery life | Make sure your device is charged to at least 40% before bed |
| Fitbit Premium subscription | Provides access to Sleep Profiles, which offer a more detailed breakdown of your sleep that appears once a month |
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What You'll Learn
Syncing your Fitbit with your phone
To sync your Fitbit with your iPhone or Android phone, you'll need to install the Fitbit app. Before syncing, it's a good idea to check that your phone is compatible with the app by visiting fitbit.com/devices. Once you've installed the app, open it with your device nearby. Then, tap the "Today" tab and hold on the screen, pulling down until a progress bar appears at the top. Release your finger and wait for the progress bar to fill. If it doesn't sync, you may need to check your phone's Bluetooth and internet access. Reset your Bluetooth by turning it off and then on again, and ensure your phone is connected to either cellular data or Wi-Fi.
If you're still having trouble syncing, you may need to pair your Fitbit device again. For iPhones, open your Settings and tap Bluetooth. Tap the Information icon next to your Fitbit device and select "Forget This Device." Reopen the Fitbit app, and when prompted, approve the request to pair your Fitbit with your phone. For Android phones, you may need to uninstall and reinstall the Fitbit app. Before uninstalling, check that your phone is running a supported version of the Android OS.
If you continue to have issues with syncing, you can try restarting your Fitbit device. Additionally, ensure that your Fitbit device isn't paired with any other phones or tablets nearby. If it is, remove it by opening your Settings, tapping "Connected Devices" or Bluetooth, and disconnecting from there.
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Manually tracking sleep
To manually track sleep on your Fitbit Charge 2, you will need to first download the Fitbit app on your phone. Once you have the app, open it and turn on Bluetooth if it isn't already on. Then, click on the Profile icon on the top left of the app and select "+ Set Up a Device". Choose your device from the list of available options and click "Set Up". It is important to read the Privacy Policy and click "Accept" to give the necessary permissions.
After setting up your device on the app, make sure that your Fitbit is charged to at least 40% before going to bed, as the sleep-tracking function affects the device's battery life. Secure your Fitbit comfortably on your wrist, about 2-3 finger widths above the wrist bone, and ensure that the band is not too tight.
Now, to manually track your sleep, open the Fitbit app and select the Sleep icon (moon icon with the letter "Z") from the app dashboard. Tap the "+" icon in the top right corner of the Sleep section and choose "Add Sleep Log" if you forgot to wear your Fitbit to bed or if it was charging. If you want to start a sleep log, you can select "Begin Sleep Now".
In the morning, open the Fitbit app and go to the "Today" view by selecting it from the bottom left of the main dashboard. Pull down on the page to refresh and sync the app with your tracker. Continue pulling down on the page until you see a sleep duration displayed under the moon and "Z" icon.
By following these steps, you can manually track your sleep using the Fitbit Charge 2 and gain insights into your sleep patterns and overall sleep quality.
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Interpreting your sleep data
Your Fitbit Charge 2 can help you understand your sleep patterns and improve your sleep. Your device will track your sleep cycles, which typically last 90 minutes and alternate between two types of sleep: Light Sleep and Deep Sleep. Light Sleep is characterised by less brain activity than REM sleep, while Deep Sleep periods are longer earlier in the night. As the night goes on, REM sleep—the stage associated with vivid dreams—becomes longer. You can view your total sleep from the previous night, as well as your Sleep Score, on the Fitbit Today tab. On some models, you can also swipe left on the Sleep Tile to see detailed data and your sleep history for the week.
Your Sleep Score is a number from 0 to 100, with a one-word description like "good" or "fair", giving you an at-a-glance sense of how you slept. If you have a Fitbit Premium account and use a more advanced tracker, Fitbit will assign you a Sleep Animal based on your sleep metrics. For example, bears tend to have a consistent sleep schedule and fall asleep quickly. To get a Sleep Animal, you need to wear your device to bed for 14 nights in a given month.
You can also use the Smart Wake feature, which monitors your sleep stages and wakes you during a Light Sleep stage within a 30-minute window before your set alarm time. If you have a Fitbit Sense or Versa 3 and a Premium account, your device can also monitor noise in your bedroom, including snoring. This information could be useful for medical conversations with your doctor.
It's important to note that your device needs at least 3 hours of sleep data to estimate your sleep stages, and factors like battery life and positioning on your wrist can affect the accuracy of the data.
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Adjusting your sleep settings
To adjust your sleep settings on your Fitbit Charge 2, you will need to download the Fitbit app and sync your device.
Syncing your Fitbit Charge 2
Firstly, download the Fitbit app from your device's app store and open it. Ensure Bluetooth is enabled on your phone. Click on the Profile icon on the top left of the app and then click "+ Set Up a Device". Select your device and click "Set Up". Read and accept the Privacy Policy, and then confirm that your device is fully charged. Hit "Next" and wait for the app to search for and sync with your device.
Once your Fitbit Charge 2 is synced, you can adjust your sleep settings. To do this, tap the settings icon on the top right of your app's Sleep page. From here, you can adjust your sleep sensitivity, choosing between "Sensitive" and "Normal". If your sleep data seems inaccurate, you may need to change this setting.
You can also adjust the start and end times of a sleep session in the Fitbit app. To do this, open the app and go to the Today view by selecting it from the bottom left of the main dashboard. Pull down on the page to refresh and sync the app with your tracker. Your sleep duration will appear under the Sleep section, which is represented by a moon and the letter "Z".
Other sleep settings
If you have a Fitbit Premium subscription, you can access additional sleep settings and features, such as the Sleep Profile feature, which provides a detailed breakdown of your sleep once a month. This feature is available on specific models, including the Charge 5 and Charge 6.
Additionally, if you have a Fitbit with a heart rate monitor, you will receive a sleep score that weighs factors such as your movement during the night and the amount of deep sleep you got. This score is given on a scale of 0 to 100, with a higher score indicating better sleep quality.
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Using the Smart Wake feature
The Smart Wake feature on Fitbit Charge 2 monitors your sleep stages and wakes you during a light sleep stage within a 30-minute window before the alarm time you set. This should make it easier to wake up and prevent you from feeling groggy.
To use the Smart Wake feature, first, make sure that you are on the latest watch app and phone software version. Then, 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. You can also adjust the noise sensitivity.
If you have a Fitbit Premium account and a Sense or Versa 3, your device can monitor the noise in your bedroom, including snoring. This information could be useful for starting a conversation with a doctor or making adjustments to your environment, such as closing windows and doors before bedtime or using a white noise generator.
The Smart Wake feature is available for the Ionic and Versa series smartwatches, as well as the Charge 3 and 4, Inspire HR, and all newer Fitbit-branded fitness trackers and smartwatches. It is important to note that the feature affects battery life, so ensure your device is charged to at least 40% before bed.
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Frequently asked questions
First, make sure your Fitbit is charged to at least 40% before going to bed. Then, download the Fitbit app and sync your device. Once your Fitbit is synced, simply wear it to bed and it will automatically start tracking your sleep when it recognises your body is going into sleep mode.
You can view your sleep data in the Fitbit app. Open the app and go to the Today view, then pull down on the page to refresh and sync the app with your tracker. You should then see a sleep duration under the section with the moon and "Z" icon. You can also swipe up from the clock face on your tracker to get to the Fitbit Today tab, where you can see your total sleep from the previous night as well as your Sleep Score.
Your sleep data will include the amount of time you spent asleep, awake, and restless. Fitbits with heart rate monitors can also track your sleep stages, including light sleep, deep sleep, and REM sleep. Your sleep data will also include your Sleep Score, which is a number up to 100 that gives you an at-a-glance sense of how you've been sleeping.
To improve the accuracy of your sleep tracking, make sure your Fitbit is positioned higher on your wrist, about 2-3 finger widths above the wrist bone. The band should be secure but not too tight. You can also adjust your sleep sensitivity settings in the app by tapping the setting icon on the top right of the Sleep page and then tapping Sleep Sensitivity.
