Versa Lite's sleep pattern

[Ryry46]

My Versa Lite sleep pattern constantly only shows solid line rather than graph. Can't seem to resync it.

Moderator edit: updated subject for clarity. 

[AndreaFitbit]

Welcome to the Fitbit Community @Ryry46. I apologize for the delayed response and will be glad to assist you with your Versa Lite sleep pattern inquiry.

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 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.

Please let me know if you have more questions.