Sense not tracking sleep everyday

[Litrails]

Sleep data works then doesn’t.  Frustrating!  Before SP02 update, data recorded every night.  Now adding the O2 saturation, changing the clock face so it records, causing problems even recording data I never had a problem with before.  A couple times it will work and then does not work for several days. 

Moderator Edit: Clarified subject

[SilviaFitbit]

@Litrails Welcome to the Fitbit Community. Thanks for the details mentioned. 

I see where your frustration is coming from. I appreciate the troubleshooting performed prior to posting. 

I was able to see that you have a case with our Support team. In regards to the sleep data not working as expected, 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 with my Fitbit device?
• If you slept for less than 3 hours.
• If your device’s battery is critically low.

Hope this helps.