I also cannot fall alseep without a sleep aide (ambien), and it still take an hour or longer to fall asleep. I will lay down to relax many afternoons after classes, but do not fall asleep. I started using a CPAP for sleep apnea two weeks ago and still cannot get use to the mask. The longest I have had it on in one continuous stretch is 4 hours. Last night after two hours, I gave up and took it off. At some point during the night, I put in on for another two hours. I have to wear it for at least four hours every day for the insurance to pick up the costs.