Charge 2 not recording sleep stages?

[Corfu19]

For the past week it's only recorded basic sleep patterns.

I've not got it too tight or loose and I've tried restarting it as suggested on here.

Any other things to try?

Moderator edit: updated subject for clarity

[AlvaroFitbit]

@Corfu19 It's great to see that you've visited the Fitbit Community!

Let me help you with your Charge 2 not saving sleep stages. You may not get sleep stages for the following reasons:

• 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?
• If you slept for less than 3 hours.
• If your device’s battery is critically low.

Let me know how it goes.