Well, tonight's the night. I broke the ResMed AirTouch F20 out of the package and am taking it for a test run tonight. The one thing I'm a little edgy on is that they don't last long. They say one month but I've read that if you wash your face before you put it on and then wipe the mask off with a CPAP wipe every morning it will last longer. You are not supposed to wash them or put them in water, etc. as it will reduce the life of the memory foam. With the sore on my honker I'm a little reluctant to try it until it heals but I'm anxious so I'm doing it anyway. Will let you know how it goes tomorrow!