CPAP made a huge difference in my life. I stopped breathing 54 times an hour. I've been on CPAP for 10 years. I cannot even nap without it anymore. It improves my mental outlook and my awareness of what is happening around me. I am on 14cm pressure. When I go to bed I strap on the CPAP and I'm usually asleep within 2 minutes. I am a 9 year prostate cancer survivor, survived 5 years after a melanoma excision but just had a second, and currently am low risk smoldering myeloma.