I had one done at a sleep clinc as i'd had a few incidents of what I assumed was sleep apnea.
(if I slept on my back, I'd get the sensations whilst I was asleep that i'd stopped breathing, then I'd jolt out of my sleep kind of gasping for breath)
Like you, I was hoping the study would confirm sleep apnea and that it was my jaws/airway that were the issue so that I could get free jaw surgery!!
![Smiley :)](https://jawsurgeryforums.com/Smileys/default/smiley.gif)
However, the study came back with mixed results that the head physician wasn't concerned about as most of my readings were acceptable, so no free surgery on that basis.