yes we have had that discussion and a few months ago she was fine with it but recently she told me that it bothered her more than she thought it would. No but i think we will get the strips and see if it works. Oh and yes I do enjoy masturbation but would really like sex with my wife again.
I think masturbation is completely normal I think it would weird me out a little if I woke up and my partner was doing it next to me while I was sleeping and I think it would weird him out if I were the one doing it. I don't think it is fair for her to be upset when you masturbate, you have sexual desires and you are taking care of them in a healthy way. I would talk to her about her lack of desire, my mom had the same problem all of a sudden and it turned out that her testosterone was extremely low, that may be the reason your wife has a low sex drive or it could be an emotional thing, either way, I really think it needs to be addressed.
Pcarsey is right about the snoring thing, that is a sign of breathing problems.
Have you talked to your wife about why you do it? I don't really know the percentages of men who does, so I can't be sure if it would be considered normal.
And yes her snoring could be the cause of her not getting good enough sleep. I assume when she snores her breathing could be restricted thus causing a very restless night! Has she tried those breathing strips?
Good Luck!