Tracker won't get the sleep Charge 5

[DanieleFiore]

hello guys,

since 2 weeks already my Charge 5 gets simplified sleep at least 2 nights on 3.
I did all the suggestions offered in the how to but without results, i have also rebooted the device.
What can i do ? i'm a bit frustrated as this is pretty new device after i was given a new one because the previous device has drown in the pool.

Many thanks for any help.

Daniele

Moderator edit: subject updated for clarity

[DavideFitbit]

Hi, it's good to see you visiting the community forums, @DanieleFiore.  

Thank you for sharing all this information regarding your sleep stages not being recorded by your Charge 5.  

Please take into consideration that 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.

In addition, if you continue to experience the same difficulty, try to perform a three pulse restart using the charging cable instead of the restart available in the device's settings, as described here. This has been useful for other users experiencing something similar. 

And since the sleep stages depend on the heart rate information, I would also recommend following all the instructions in this article to improve the accuracy of heart rate information: How to I improve the accuracy of my heart rate rate reading?