I had some fault in my watch (Forerunner 645 Music) so i sent it to the lab, after i get the watch back from the lab I've noticed that sleep statistics has disappeared both in my watch (as widget) and in the app. I've tried to do factory reset (without wiping data) and it did not returned, also tried to follow garmin instructions here Sleep Statistics with no success. How can i restore sleep statistics back as it was before?
Thanks.