I've had 2 sleep studies performed in the last month and have been diagnosed with "severe" sleep apnea. I picked up my C-PAP and other equipment yesterday and attemped to use it last night for the first time. My machine has the de-humidifier but I didn't have any distilled water for the tank so I couldn't use it. I woke up about 3:00 am and my throat and mouth were very dry and it was driving me crazy. So I took it off and went the rest of the night without it. Not a very good first experience with it. Any of you out there that share my pain with sleep apnea, please give me some advice or a good word or at least something to help encourage me. The Doc told me it would be hard, but I wasn't expecting this! Thanks in advance!