Having a C-PAP isn't like it used to be. It's much easier now, the part that fits on your face is so much more comfortable.
I did a sleep study and I am a night person. I told them over and over when they told me to come to the hospital at 9pm that I didn't normally go to sleep until well after midnight.
It took a while for the tech to attach the sensors to my head. The glue made me itch. The tech put meds on the area and I stopped itching right away. Then he put an oxygen sensor on my nostril. It kept me from going to sleep for hours. I finally wiggled a little on the pillow and moved it so he would think I just did it without planning it.
He was annoyed that I didn't drop off right to sleep as soon as the lights were out. I laid there for at least an hour. I meditated, I counted sheep, I wrote stories in my mind, I tried so hard to fall asleep. He expected me to be asleep by 10pm and once I'd slept through a sleep cycle he woke me up and removed the sensors.
I felt like I hadn't even really had an assessment.
My husband with through O U Health Science Center in OKC, the ORL department and he spent the whole night. He went in around 8pm and called me around 7 that he was awake and I could come get him. He got a thorough eval. He wears a C-PAP now. He went through several nasal appliances. The one he has now is comfortable.
Think of it like wearing oxygen during the night. That you need this to get that air you desperately need.