I own an FR955. Three days ago, my watch abruptly stopped logging my sleep. I sleep with my watch on. Despite turning off the battery saver and turning on the wrist heart rate monitor, neither my watch nor my phone's Garmin Connect is recording anything. Because my watch thinks I'm sleeping, all of my stats are beginning to decline. I have no idea what I did. My watch won't sync with my phone when I try to do so, but it will sync with my home wifi. I really don't know what I did to cause the watch to suddenly fail. I think I may have turned something off when I updated my watch a few days ago.