I have a recommendation for the Sleep app within the Health Mate. When editing sleep in "edit my night", I suggest that the "Fell asleep at" reflect the time when you attempted to fall asleep (i.e. the tie when you go to bed) and not the actual time that sleep started. This would give us a more accurate estimate of the tie it takes to fall asleep once you choose to go to bed. It is impossible to actually know when you "fall asleep", but we can all estimate when w turn the lights off and "go to bed". Many of us read in bed before going to sleep, and Withings things counts that all as time it takes to fall asleep.