Thanks for the info. My husband suffers from sleep apnea and has for years. He went in for a sleep study and has been sleeping with the cpap for years now, but he gets tired of having to depend on the machine in order to get a good nights sleep. He cannot even nap in the day without this machine. The past few years he has been suffering with sinus trouble and constant ear problems. I believe it has something to do with the Cpap machine. He was so severe that he has to have 16 pounds of air pressure to keep his throat open at night. He has thought about surgery...any more info you can give us would be appreciated.