Hi Pearlys,
I too have sleep issues. I also sleep with a cpap machine. When I was in the hospital for surgery, i apparently stop breathing a couple of times and ended up doing sleep study. I still wake up from time to time during the night, i litterally sit up as if I had never fallen asleep. But my episodes comes in spells, almost in cycles, usually when the weather changes from season to season, , my sleep issues start. I wish you the best and hope you get the much needed rest you meed.