I used to do research studies for sleep problems - mostly insomnia. I got to hear about what went on in the sleep lab from both sides. It's a wonder anyone can sleep at all with all the wiring, not to mention being watched by infrared camera. Anyway, Pat also has severe sleep apnea, but the thing that really scared him was that he also had a heart arrhythmia associated with it. He ended up needing a bipap machine because the CPAP machine caused him some problem, so if you have trouble adapting be sure to let them know what the problem is. It helped Pat a lot and I'm sure you will feel much better.