I respect my parents and grandparents decision to not let my fiance and I sleep in the same bed together(at least when we visit them) before marriage.
We've been together almost six years and my family is a solid three hour drive from us, so if we want to stay for any length of time it usually requires us staying the night. So we do the who sleeps where dance and everyone has to move around in rooms and onto couches.
That said, I CANNOT WAIT to visit my parents and sleep not only in the same room as DH but the same (gasp!!!) bed!
HOOORAY!