The sleep study is not to just see if you have apena. It's also to make sure you won't have any breathing issues while your under anesthia. At least that is what I was told. And I had my psych exam in late 2008 and last week with Dr. Kennedy. (Didn't know I had to be with my insurance company for three yrs for the band to be covered. So had to redo the psych and nutrition part. Will be getting the band after 6*14*10) True Results in Hurst recommended him. I was there for less than an hour. And I was asked less than twenty questions.