Fitbits are great smartwatches with a variety of capabilities. However, some users have reported that their Fitbit is inconsistently tracking their sleep or not tracking their sleep at all anymore. To help, I researched what to do if you’re Fitbit isn’t tracking your sleep. 

What to do when your Fitbit stops tracking sleep: If a Fitbit stops automatically tracking sleep, restart it using the specific directions for that Fitbit model. If the Fitbit is still not tracking sleep automatically, users can start and stop the sleep tracker manually using the Fitbit app.

Here are the directions to restart each type of Fitbit. If restarting your Fitbit doesn’t work, there are a few other troubleshooting tips you can try.

Fitbit Isn’t Tracking Sleep: Troubleshooting Tips

To properly troubleshoot your Fitbit when it isn’t tracking your sleep, it helps to understand how Fitbits track sleep. 

Fitbit registers that you are sleeping after an hour of no motion. Therefore, if you take a nap for less than an hour, your Fitbit will not recognize it as sleep. 

Make sure your Fitbit is snug on your wrist before going to sleep to ensure the most accurate sleep tracking. 

Restart the Fitbit

Restarting your Fitbit is always the first troubleshooting tip you should try because it’s simple and fixes many Fitbit problems. 

Follow the steps below to restart a Fitbit Charge, Inspire, Ace 2, or One.

  1. Plug the charging cable to your computer or a UL-certified wall charger.
  2. Plug the other end of the cable directly into the Fitbit. Ensure that it is securely connected by making sure it is charging. 
  3. Hold down the button on the side of the Fitbit for 10-12 seconds.
  4. Depending on the model of Fitbit you have, you may see a start-up screen, a smile icon, or a battery icon. When you see this, you can release the button and unplug your Fitbit.

To restart a Fitbit Ace, Alta, or Flex 2, press the button on the charger cable three times with a brief pause between presses. 

For Fitbit Blaze, Ionic, and Versa, press and hold the buttons on the back and bottom of the Fitbit until you see the Fitbit logo. For Fitbit Versa Lite and Versa 2, hold the back button for at least 10 seconds. These Fitbits do not need to be plugged in to be restarted. 

The Fitbit Zip uses a CR2025 battery. To restart a Fitbit Zip, follow the steps below:

  1. Open the battery door and remove the battery.
  2. Wait at least 10 seconds.
  3. Put the battery back in the Fitbit with the + sign facing up.
  4. Close the battery door. 

Using the Sleep Log 

You can use the Fitbit app to start and stop sleep tracking if your Fitbit isn’t automatically logging your sleep.   

You can also make changes to your sleep log at any time if it is inaccurate. Here’s the directions:

  1. In the Fitbit app, select the Sleep tile. 
  2. Choose the night you want to edit. 
  3. Tap on the three dots.
  4. Select the option to edit.
  5. Adjust the times you went to sleep and/or woke up.
  6. Press “Save”. 

If you prefer not to worry about your Fitbit automatically tracking your sleep, you can manually log your sleep in the Fitbit app or your Fitbit account. However, this is not a preferred option because you don’t get any information about your sleep patterns or sleep stages when logging your sleep manually.

Sleep Sensitivity Mode

Some Fitbits have normal and sensitive modes for tracking sleep. If a person moves a lot in their sleep, sensitive mode may make it look as if the person isn’t sleeping at all. For light sleepers, normal mode is better.

Here are the steps to change the sleep sensitivity mode using your iPhone or iPad:

  1. In the Fitbit app, click on your profile icon.
  2. Select “Advanced Settings”.
  3. Select “Sleep Sensitivity”. 
  4. Choose Normal or Sensitive mode. 

You cannot change this setting on an Android phone. 

To change the mode on a computer use these steps:

  1. Go to and sign in to your account. 
  2. From the dashboard, click on the gear icon in the top-right corner. 
  3. Select “Settings” from the drop-down menu. 
  4. Scroll down to “Sleep Sensitivity” and choose Normal or Sensitive.
  5. Press “Submit” to save your choice.  

Fitbit Sleep Tracking Settings

Fitbit can help you create and maintain a healthy sleep schedule with various sleep settings. For example, your Fitbit has a silent alarm that can wake you up gently. 

Sleep Goals

You can create a goal of how many hours you want to sleep each night. The recommended sleep time for adults is at least seven hours. Here are the steps to create your personalized sleep goal:

  1. In the Fitbit app, select the Sleep tile. 
  2. Tap the gear icon in the top-right corner. 
  3. Set or change your sleep goal.
  4. Tap “Done”. 

Sleep Schedule

You can set a sleep schedule to help you meet your sleep goal. Set a target bedtime, wake-up time, or both, in the Fitbit app to create your sleep schedule. 

Once you have determined your ideal bedtime, you can also set a bedtime reminder for specific days and times. 

For nights that you successfully adhere to your sleep schedule, you will see a star in your sleep log next to that night.