You missed their meaning. They meant that taking your watch off overnight to charge it gets in the way of sleep tracking. Edit: People aren't reading carefully

You missed their meaning. They meant that taking your watch off overnight to charge it gets in the way of sleep tracking. Edit: People aren't reading carefully. https://news.ycombinator.com/item?id=27321770 https://news.ycombinator.com/item?id=27321770 clearly means what I've stated and then the parent says that they must not have tried charging their watch at some other time.