A:Answer If you know you fell asleep you can input the time your nap started and the time you woke up and it will fill in all the info for that time including wake-ups. I'm not sure how specific it is for sleep apnea, it records wake-ups that I was not aware of as well as sometimes missing very short wake-ups that I do remember. For example, I might roll over and wake up just enough to look at the clock and catch the time but fall back to sleep right away and it doesn't record my brief period of being awake. It might require you to be awake for a minute or more to record it.
