Every now and then Vivofit and Garmin Connect completely mess up my sleep times. This morning, after I had set my sleep time manually, I saw that garmin connect had set these times:
Start time: 1:16
Wake time: -14:-55
This happens every now and then both when I manually set my sleep time from garmin connect, and when I use the Vivofit to sync the sleep time directly.
My Garmin Connect username is hgarnes.
See attached screenshot