Yea. I am a severe case obviously. My machine is set at 17
Before the machine I had episodes where I woke up in the middle of the night gasping for air, feeling like someone was choking me out. My wife would wake up with me crawling on the floor gasping for air. Freaked us both out.
I would also fall asleep while driving and while talking to people.
the cpap was a God send, felt like a new man after wearing it the very first night
It hasn't completely cured me though, my wife says I still have episodes where I jerk during the night and she wakes me up to get me to breathe, but nowhere near as often as before.