Yes it fixed itself after a few days.Hate to revive an older thread. Did this ever fix for you? My SS S5 is on 9.6.1 and I started having issues where it would drain from 100-30% overnight during sleep tracking. Started a couple weeks ago. I have just tried unpairing and restoring and will see if this fixes, but I don’t think so based on the couple hours since the restore. Battery health is at 80% so I’m borderline to start an AppleCare+ Battery service.