I was so surprised I didn't even wake up with a headache from the straps on the headgear, it was just great, I really enjoyed it. What a joy it is to be able to breathe at night. It's such an important thing we all do that to learn you stop doin git during sleep, a time where we're at our most vulnerable state, is really disconerting. I am so happy with my machine BMW I am bouncing in my chair and off the walls! Thanks for the encouragement, I knew it would take a little getting used to but I still enjoyed my first night on it.