I've come to realize something else about our sleeping habits that I didn't mention in my first post.
I actually can't sleep unless he's next to me. I don't think he has the same issue if I'm not in the bed, but I really do have a hard time falling asleep at all if he's not next to me.
We'll wait for one another to get tired before heading to the bedroom. Sometimes if I'm really tired before he is, he'll lay with me until I doze off then get up and go play some video games or something. But generally, we sleep through the night for a good 5-7 hours every night. We usually wake up around 5 am.
I really don't know how I would cope sleep-wise if we had to spend several nights apart in a row. I would probably be so crabby from sleep deprivation...