I am just staring my process and I too have Aetna. My lap band doc wants to send me for a sleep study. I talked to the lady at the Barix Clinic, and she advised that I either had to show a 2 year BMI of 40 or above OR BMI of 35 or higher with a co morbidity and that co morbidity had to have been treated during the last two years. So in other words, I couldn't get the sleep study done tomorrow and come back that I have sleep apnea and use that as my co morbidity since I have not been treated for it during hte last 2 years. I am going to call Aetna tomorrow to confirm. It's all so confusing!!!