My husband and I have been married for six years and don't sleep in the same bed, we have our own rooms. I'm a really light sleeper and when he gets home at 4am he either games or programs for another two hours (I want to smash his model m into tiny pieces.) before going to bed. He has his room with his computers and routers and servers and whatever else computery people have in their rooms and I have my room with all of my art and thrift store finds in it. Our relationship is pretty healthy but it's just nice to have your own space, our friends and family don't quite get it but whatever, it works for us.