@Imogensmumma
None of the OTC 'remedies' helped us.
Eventually, though, my ex was diagnosed with sleep apnoea, and given a CPAP machine. He struggled to use it. I think, though, even if he had mastered it properly the damage to our relationship was already done by that time.
For years on end I was like a zombie due to sleep deprivation, until I hit on the cure of going to sleep before him. Which was fine unless I needed to visit the loo during the night. That was it, sleep time over even at 1:00am, and the next six hours wondering how many years in prison I'd get if I just put a pillow over his snoring face. I'm only half-joking there, because the effect of sleep deprivation really messed with my mental health. 😒
I have far too many anecdotes from family/friends who encountered his snoring on holiday, visits etc. over the years. They simply could not believe the decibel level even two rooms away, far less what I experienced lying side-by-side with him.
I genuinely believe if it had not been for his snoring, his refusal to accept it was torturous for me and his continual delay in having the investigations, we would still be together.