Thank you for your input. I will try to follow your suggestions. I may run into problems as I am 81 and not very tech savvy. When I read the posts on the apnea site I get confused as there is so much unfamiliar technology terms. I have several friends on CPAP who swear by it. They, like you, took to it right away and never skip it. So far the only real change in my life with it is that it rehabbed my sinuses. However I do not feel a bit better in the morning. I am still tired and foggy headed. My oxygen levels during the day are just fine.