Answer: I understand what you are going through. I've been using a c-pap machine now for about 8 months. It took me a little while to get used to my mask as well. The first few times I used it I had a panic attack because it felt like it was suffocating me. After a few weeks of sitting with it on for a little while before I went to bed and concentrating on taking long, slow, relaxing breaths through my nose (which was new for me as I have always been a mouth breather) I finally got used to it. You may also want to contact the service provider of your machine and try a different mask that might be more comfortable for you. If you are waking up tired in the morning you may want to talk to your doctor about having the pressure on your unit adjusted as it might not be high enough for you. The addition of a humidifier in the room and/or on your c-pap may assist your sleep as well. I have found that if I take a Benadryl at night (as I have noticed that I get rather stuffy in the PM before I go to bed) it may help you relax and allow you to breath more normally through your nose.