If you did not consent to it, and it bothers you, then he should not be doing it. I would consider it abuse, or at least sexual assault. He should be respecting your desire not to be touched while sleeping. It doesn't matter what has happened to your sex drive, or what he would need to do for himself. No is still no. I'm pretty sure he can handle himself and still get what he needs without involving you. I'm sorry he is being so disrespectful.

I personally hate the idea of being woken up by being touched (very, very triggering), so I can totally relate.