I can't say enough good things about my CPAP. I have used one for 10 years. Before being diagnosised I would fall asleep during a conversation, while I was doing the talking. My 30 mile trip to and from work was so hard. I would have to stop my car 2 or 3 times to get out and walk around to wake up. A few times I even pulled off the highway on a side road and slept. I felt tired all the time even after waking up for 10 hours of sleep. My CPAP gave me a renewed life.