Just if you go to a spring-type mattress (as opposed to foam or futon), try it out with BOTH of you and make sure that one of you can move without jostling the other. We bought our first and last spring-type mattress without doing that test, and now every time he rolls over or extends his legs, it nearly bounces me out of bed. It wasn't a cheap mattress, either. I can't wait until the awful thing wears out.