Inspire 2 is not tracking my sleep data

[mariinaba]

I got an inspire2 and I was really interested on the sleep measurements. I had data for sometime, but I stopped wearing it for a month, when I started to wear it again, I didn't get any sleep data, but I still have heart rate and movement (even during the night). I made sure I didn't change any settings, everything is as before. What is it happening?

Moderator Edit: Clarified subject

[MarreFitbit]

Hi there, @mariinaba. Welcome to the Fitbit Community Forums. Thanks for the details provided in your post about the issue with your Inspire 2. I understand where your concern is coming from. I will do my best to help you with this! 

As a first approach, I'd recommend trying the following steps to reset the heart rate monitor as heart rate reading is key to get your sleep data 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 Inspire 2. To do so, open the Fitbit app, tap on the Account icon, tap on your Inspire 3'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.

Also, for more detailed information, see What factors can affect my heart-rate reading on my Fitbit device? 

Keep in mind that you must see sleep stages in order to see your sleep score information. Please swipe left on the Sleep Score graph, here you can see information about your weekly sleep average and sleep duration. To get more detailed information, see What's sleep score in the Fitbit app?

With that in mind, 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.

For more information, see What should I know about Fitbit sleep stages?