I had a sleep study done, which determined I have "mild apnea" and my PCP said that according to the report, I "do not desaturate."
Instead of following through with the study, I got banded, LOL!
Wear COMFY jammies, bring your own pillow, and a nice, boring book to read to put you to sleep.
Do NOT plan on going straight to work the next morning. You will have a headful of goop from the electrodes, and you will be POOPED from sleeping in a strange bed. Stumble into Starbucks to get a cup of coffee for the drive home, and then count on a shower and some decent ZZZZs.

~VOW