Do Catholics believe in not sleeping in the same bed until married?

My boyfriend is very religious and we have discussed that he doesn't want to have until marriage but whenever I sleep over in his fraternity, I always sleep on his futon not his bed. We never really discussed me sleeping in his bed with him, so I don't know if he would care if I slept in the bed with him. His bed is lofted so I'd have to literally climb the side of the bed to get up, so I don't know if that is part of it or if Catholics believe that two people can't share a bed if they are unmarried. We are both college juniors btw.