I've been a snorer my whole life. It literally makes my wife nuts. Yes I've had sleep tests (two of them) and I have mild apnea. I went to a specialist a couple of years ago and he determined that my deviated septum was causing 90 percent blockage in my right nostril. After nasal surgery, I could breathe MUCH better but my mouth was still hanging open and causing me to snore. Since then, I've tried the chin strap and my new BFF: mouth tape. Who knew these things even existed! Will keep you posted if it works!