I have sleep apnea and have a machine, but I have such a hard time using it. I have clostophopia and get all panicky when I put it on. I have to use sleeping pills to get to sleep with it on and I hate the way the pills make me feel. I did switch to the nose pillows and they weren't so bad, but my CPAP guy said my nose is too small to use the one I like, but the one he set me up with makes my nose so sore. I am going to INSIST that he gives me the 1st ones that I liked so well.