DH and I gave up sleeping in the same bed a long time ago. My mother was totally shocked when she found out (accidentaly through my DD). She is very much a traditionalist and I'm sure she thought we were on the brink of divorce!

But there is no way I would ever get any sleep otherwise: I go to bed between 10 and 11, I need complete dark and silence to sleep and I wake up at 5:30 am to work. DH is nocturnal and stays up until 2:00 am or so and cannot fall asleep without the TV on - full volume. Plus he snores - LOUDLY. I simply cannot sleep in the same bed with him! We found out early on in our marriage that we were incompatible in that way and we've worked around it. No big deal. It's not weird - it's what works for us.