Got a sleep study coming up to (probably) diagnose sleep apnea. Have been reluctant to take the test due to thinking I could never adapt to sleeping with the machine hooked up to me, but I have heard others rave about how much it has helped them...anyone care to share experiences?
I snored terribly for years...always felt draggy during the day...got to the point that I was falling asleep in meetings, when driving, etc. After reading and hearing about sleep apnea, my wife filmed me when I was asleep (without my knowledge) and I was horrified...I would literally stop breathing for a long time, then gasp for breath, and then stop breathing again. After seeing that, I went to my doctor and he sent me to a sleep clinic. Sleep apnea can be very dangerous, and can lead to heart attacks or strokes.
I had to report in the evening, and had to spend the night. They wired me to a monitor, as well as filmed me, and said that I would sleep as I usually did for the first half of the night, and then they would put me on a CPAP for the second half, to see what difference it made. After I had been asleep for about an hour, they woke me up and said they had never seem anyone with such a bad case of sleep apnea, and they were going to go ahead and put me on a CPAP machine. They did so, and I got the most delicious, wonderful sleep I have ever had! I woke up feeling so refreshed and energized, it was amazing!
The CPAP machine uses a steady stream of air pressure to keep your air way open. That is what causes sleep apnea, an obstruction of the airway...some cases can be surgically corrected, like if it is due to too much tissue in the throat, but others (like mine) are because I have too much double chin.

Even some thin people have sleep apnea, though.
I have used a CPAP machine ever since, and that was in 1997. There are various kinds, and use various masks, including some that cover the nose and mouth, nose only, or even nasal inserts that just go in the nostrils. Mine is a small mask that just covers my nose. Some units include a humidifier that adds warm moisture to the air. Most units have a "ramp up" feature so that the force of the air gradually increases when you turn it on so you don't feel like you are being "blown up" like a balloon. I don't need that, myself...I guess I am used to it.
I didn't find it hard at all to get used to it...and if the power goes out at night, I immediately wake up because I can't breathe! I sleep very well with mine...the one thing that is different is that before, I never slept on my back...just on my side or stomach. I also thrashed around a lot. Now, since I have the CPAP, I sleep flat on my back, and I don't move once I go to sleep.
Good luck with your sleep study, and if you need a CPAP, I think you will find that it helps a great deal.