I'm a bit disappointed with my new Vivoactive HR.
There is no option to manually start and stop sleep mode.
And the automatic detection is so ridiculously inaccurate that it is maddening. Last night it "detected" that I slept from 6pm until 8pm, while in fact I went to bed only after midnight and slept until 9am. WTF??
The only option at the moment is to manually enter the time in the app and I don't want to do this.
Is there a way to increase accuracy?