If I correct the start and finish of sleep, the total ammount of hours doen not recalculate. In the screenshot there are not over 7 hours between start and finish ciq.forums.garmin.com/.../1286975.png
Same problem with the Vivoactive, ios11, ever since app update, when I look back at data from 2 weeks ago that used to look correct! Also, time zone seems to be wrong - my sleep is misreported by an hour now.