Beginning last Friday, the Sleep Tracker function on my 5x Plus has stopped working properly. Time asleep is now logged as Awake in Garmin Connect when using the F5xPlus. The problem is definitely with the 5xP, as my Vivosmart works fine (see Wednesday vs Tuesday in attached). I have been in touch with Garmin support, yet they have no suggestions while acknowledging the issue. I wonder if anyone else has had this problem and been able to resolve it.