I have been having the same problem since May 7th! I also adjusted how I was wearing my Fitbit, cleaned it, ensured I have the latest firmware update, and reset it - multiple times, so the problem must be with Fitbit. I gave up on it for a few weeks, but I just tried again to initiate a Live Chat to find a solution but received the message that says "due to recent events affecting our operations, support options are limited and wait times are longer than usual. If our community doesn't resolve your concern visit our help site..." Due to the lack of ability to contact someone, I can only assume that no support is available currently. The community can't resolve a problem that we are experiencing because Fitbit needs to fix the sleep tracking function.
