No opinion on the surgery, but you might try a CPAP machine! I have a family member whose epiglottis was damaged in surgery, and she developed really bad sleep apnea as a result.

It took her a solid year of being a zombie before she figured out what was happening and why. She bought a CPAP, and it's made a huge difference in her quality of life.

So if you're looking to try out a non-surgical fix while you ponder a surgery, consider buying/renting/borrowing a CPAP!