i had a sleep study done, but only have sleep apena on my back. The doctor said it's so mild that it's not even really considered sleep apena. You need a minimum of 5 events an hour to have "sleep apnea," and I had 4 events an hour, but ONLY when I was on my back. She said position therapy would help and that I didn't need a CPAP, and that after the sleeve and losing weight it would go away.