Using Autosleep.
Charged to 100% at 9pm, airplane mode on, wake off and when I woke up at 6.40 i had 99% battery left.
Very impressed with Autosleep.
That's because it doesnt run on the watch at all.
would you be able to share a quick peak of the GUI?
Not sure if the dev would be happy about that... but he did upload v2 today (or yesterday?) so it should be live soon.