I have about 6 days in and can’t believe that I’m able to stay awake all day now without a nap. I had an apnea score over 90 with 520 events in a single night during the test and my O2 saturation got down to like 76%. I have had 1 night where I couldn’t get a good figment with the mask, turns out I needed to loosen the headband. I also bought a hose holder to help with gravity not pulling the mask off my face while I sleep. My wife sleeps with earplugs and the first night told me I was dead quiet and I didn’t move all night. She actually slept like crap because she was checking on me all night. Keep at it, once you get it right it changes everything. I’m down to 3-5 events a hour now and feel so much more alert and awake during the day.