I have been using a C pap for 7 years now. Besides the issues with traveling with the machine, dry eyes and mouth, disturbing my husband when I knock it out of placement, I have over the past year begin grinding or biting down hard on my teeth. I have been advised to get a bite guard but have recently been looking into dental device to replace my C pap as I just can't see doing both. Has anyone had any experience with such dental devices?? Do they work? Are they hard to get used to? Any other issues with them?