Sleep Stages Not Working

[T.Jackson]

Sleep stages have been working properly until today.  Last night's info is displaying in old format.

I have already reinstalled the app.

[SteveH]

Fitbit suggest there are a few reasons this can happen:

"WHY DON'T I SEE SLEEP STAGES TODAY?

There are a few scenarios where you might see your sleep pattern (which shows your time asleep, restless, and awake) instead of sleep stages:

• If you slept in a position that prevented your tracker from getting a consistent heart-rate reading or wore it too loosely. For best results, wear your tracker 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 tracker 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 tracker’s battery is critically low."

taken from: https://help.fitbit.com/articles/en_US/Help_article/2163/

[Cerelia]

I've had the Charge 2 for 2 weeks now. I bought it exclusively to track sleep stages. Only 4 nights have actually shown sleeps stages, otherwise it's only showing sleep patterns. None of the suggested user-error help topics apply. I've seen in forums that other users have this problem of it randomly working- not working. When is this going to straighten out? Do any of the other models with sleep stages work more consistently? Currently this is completely worthless to me, and I'm getting annoyed.