Thanks for all the responses, everyone! I'll try lowering the machine and see if that helps. The old machine was a Fisher Paykel Sleepstyle (600 I think) with a heated hose. It was set at 7, now I'm at a 9. I'm not sure about any c-flex or a-flex settings. I use the ramp feature. With my old machine...

Hi Everyone! I started on CPAP 3-1/2 years ago, and after the initial "shock" and adjustment, was doing very well. Recently, though, I upgraded my machine and mask, and now am having difficulty sleeping. My new machine is a respironics system one, and I changed from a Mirage Quattro full face to the...