Source: I have obstructive sleep apnea and low testosterone, both of which are being treated finally, and my income rose by... triple? quadruple? ever since
I'm looking into getting an operation at some point, but first I have to lose a few more pounds, which I am in the process of doing.
I CAN say that being ON cpap vs. OFF cpap is already a world of difference... as unsexy as that thing is.
See if you can get used to one. The latest ones have a "soft nasal pillow" thing that doesn't cover your entire nose (thank God), look into ResMed Swift FX and any later lines.
The available operations, unfortunately, do not have a 100% success rate... except for one, which is kind of drastic (and basically separates your jaw and moves the whole thing forward and requires like a 6 month recovery).
I will also add for the other poster(s), properly treating sleep apnea is huge for overall health, and helps you feel a lot better everyday. Risk of stroke goes down and a lot of other big health impacts.
I'm actually trying to lose a bunch of weight so that I (hopefully) don't have to use a machine at all (although I have a very strong suspicion that I still had this issue back when I was very skinny, I was always a snorer and always had to take mid-afternoon naps) but mostly because I might want to get one of the operations, but they won't do one until I'm back at a "fit" weight.