Hi, @BrianaJo41. There is some discussion about that if you go here (to this link) and scroll down to "Why don't I see sleep stages today?"
https://help.fitbit.com/articles/en_US/Help_article/2163.htm
That is a thing that seems to just happen some times, kind of randomly. Hopefully everything has resumed working properly by now. If not, you might be more likely to get an answer if you search past posts and then post your question in the specific forum for your particular device. I think some devices are more glitchy about sleep-tracking than others. Good luck!
Best AnswerThanks !
It only happened that one day, so far.
related to how tight or loose I wear it, or something like that!
Best Answer