There is a lot to like about the app, but... – Sleep++ Review

For the most part, it seems to accurately register the number of hours slept, however, occasionally it does not register a night’s sleep, even though I am wearing my watch and it is fully charged. I think that being able to manually enter time slept should be an option. That is really the only complaint I have, and the only thing that keeps it from being 5 stars.
Review by LadyofDreams on Sleep++.