Inspire 2 is not tracking my sleep data accurately

[sneakyburrito]

For the last couple of weeks, my Inspire 2 has not been accurately tracking my sleep.  It will say I woke up sometime between 3:30 and 4:30 AM and just stayed up.  This is never true.  If I manually adjust the sleep end time on the website, and it updates the sleep data, these times it says I woke up are just randomly in the middle of light or even deep sleep.  (Occasionally it doesn't record any sleep at all but more often, it is just really, really wrong about my wake-up time.)  It used to work reasonably well.  I have not changed anything related to my own behavior.

Moderator Edit: Clarified subject

[MarreFitbit · Accepted solution]

Hi there, @sneakyburrito. Thanks for stopping by in the Community Forums and sharing the details about the issue with your Inspire 2. I understand where your concern is coming from. 

As a first approach, I suggest resetting your heart rate to make sure your Inspire 2 can measure it accurately in order for your sleep data to also be accurately:

• Switch the Heart Rate settings from On to Off and manually sync your watch. To switch the heart rate settings on your watch, from the main screen of your watch, swipe left until you see "Settings", next swipe up until you see "Heart Rate" and switch it to Off.
• Once it's done, manually sync your Fitbit device. To do so, open the Fitbit app, tap on the Account icon, tap on your Fitbit device's image and tap on "Sync Now" 
• Next, switch it from Off to On and manually sync your watch once again. 
• Once it's done, restart your watch once again. 
• Next, confirm that your tracker is snug on your wrist (the lights shouldn't be visible) We also recommend when you're not exercising, wear the tracker just above the wrist bone.
  

Additionally, I recommend considering the following in order to get sleep stages:

• If you slept in a position that prevented your device from getting a consistent heart-rate reading or wore it too loosely. For best results, wear your device higher on your wrist (about 2-3 finger widths above your wrist bone). The band should feel secure but not too tight.
• If you used the Begin Sleep Now option in the Fitbit app (instead of simply wearing your device to bed). For more information on automatic sleep tracking, see How do I track my sleep with my Fitbit device?
• If you slept for less than 3 hours.
• If your device’s battery is critically low.

Nevertheless, keep in mind that your time asleep is calculated by subtracting your time spent awake and restless from your overall tracked sleep time. For example, if you slept 8 hours but woke up 2 times for 15 minutes each, your time asleep would be 7 hr 30 min. For more information, see What should I know about Fitbit sleep stages?