Versa 2 doesn't track my sleep

[Izzziee]

I have had my Versa 2 since November and although it tracks my heartbeat fine all through the night, quite often I only get simplified sleep data. The info says you get simplified data if the Versa can’t get a heart beat record, but the heart beat record is fine, any ideas?

Moderator Edit: Clarified subject

[MarreFitbit]

Hi there @Izzziee, welcome to the Community Forums. Thanks for the details provided in your post and for making sure that your Versa 2 is tracking your heart rate throughout the day. I'll be glad to help you with your sleep stages.

As a first approach, I'd recommend restart your Versa 2 as described here: How do I restart my Fitbit device?. The restart will help to refresh your watch internally and correct discrepancy with your data overall.

On the other hand, 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.

Let me know if you if in the next couple of night you are still not receiving your sleep data. 

[Izzziee]

Thank you for the advice, the night the data didn’t show, the heart rate data was unbroken all night, it was a 100% trace with no gaps. 
Last night the sleep data recorded ok again, it happens intermittently but the heart trace is always complete, I will report back if it keeps happening.

[MarreFitbit]

Hi there @Izzziee, you're welcome. I'll be around, keep me in the loop if this happens again.