I sleep on a Tempur-pedic and I don't like it. I turn around at night and the mattress resists that, giving me neck pain since I have to arch even more in the t

I sleep on a Tempur-pedic and I don't like it. I turn around at night and the mattress resists that, giving me neck pain since I have to arch even more in the turn to compensate. And it's not so great for sleeping face down, because of the way I sink in. I rarely wake up without some kind of neck or shoulder pain. I should replace it with something else, but I'm far from sure I can find something.