And, for gosh sakes, DON'T give up the bed. It's your Everest. Keep your flag up there.
By the way, my Everest was breaking the silence with my wife about my complete dissatisfaction with the sex issue. Once I conquered it, my work wasn't done. I had to conquer it again a couple weeks later. Then a couple more weeks after that. If it got easier, it was by nearly immeasurable increments. I'm telling you this because every fiber of your being will tell you tonight not to bother fighting the battle of the bed. Ignore the impulse and go for the Posturepedic. It's about your PERSONAL INTEGRITY, not just your back. If he turns on the lights, be prepared with an eyeshade. If he cranks the music: earplugs. Ambien helps, too.
I'm sorry, but I'm getting tired of this farker. If you were counseling your best friend who this was happening to, wouldn't you tell her something like, "stand up for yourself, girlfriend! Nobody treats my friends this way and gets away with it."