Ellie, (and Curious, too!)

If you love your wonderful husband, please, please, please get him to a sleep doctor or maybe just to your regular doc who can order a sleep study. It really sounds like he has apnea. The nose tape, special devices, (your dentist cheated you, shame on him), will help cut down on the noise but they do not address the seriousness of apnea. My husband and I both have it and boy were we surprised when the results of our sleep studies came in! (PM me if you want more info).

Every year a famous athlete dies of sleep apnea. Think of how many others die as well. Sleep apnea also increases the chance that he may have a heart attack.
So, please, don't waste any more sleep yourself. Nag him, drag him, do what you must to see a doc.

Seriously,
Nancy-h