Well, I'm always tired. It could from my lasting effects from Chiari Malformation or my low thyroid, and sometimes from my migraine hangover. So I go to the Drs and they start at square 1. A long year later and after many tests, I'm scheduled for a sleep study. Ok so I come to find out the only time I have an issue is during my REM sleep. A yea...I have 62 episodes a minute. I was completely blown away. Well, that was 2 years ago. And I still don't have my machine. It comes down to paying the copay. The insurance company even tried to call them to set up payments for me and they hung up on them 4 times before they even had the chance to say what they called to talk about. So I don't know what I'm going to do. I know it works great. The 2nd study when I had the machine on was one of the best night sleeps in a while. If you have any suggestions, please let me know. Thanks!!