I had sleep apnea, I found out by doing a sleep study. It turned out I would stop breathing 30 times an hour in my deepest sleep, enough to wake me up but I wouldn't be aware of it so I would just wake up really tired in the morning.

To fix it, I had to have plastic surgery on my jaw. When I would sleep, my jaw would relax and move back slightly and stop me from being able to breath. They sawed off my lower jaw right where my wisdom teeth used to be and moved it forward 1cm and screwed it back in and placed a bone plate in each opening. For my upper jaw, they literally sawed it right off my head and moved it forward 1cm as well to make sure my face stayed looking the same. They screwed it back in and I have so many screws my head right now. It's called maxillofacial jaw surgery and only used in rare cases of sleep apnea. It's usually done for cosmetic reasons or for people who have had an injury to their jaw.