Charge 2 not showing sleep stages

[Romojo]

My Sleep stages are not showing,  how can I get them back?

Moderator edit: updated subject for clarity

[AlvaroFitbit]

@Romojo, welcome to the Fitbit Community! I hope you're doing well!

Let me help you with your Sleep stages. You might not get this information 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.