When you were a kid, what kind of bed did you have?
What kind of bed does/will your DC have?
When I was growing up, I always had a twin bed. I was remembering last night how small it was! I am on the taller side and I just remember it being uncomfortable (basically too short).
DD has a full bed, since we bought a convertible crib. We went from crib to full size. My 2 year old lucked out, we didn't want to buy another crib when she was born and we we got a new bed, so she sleeps on a queen.
The interesting thing is, they are BOTH major bed hogs. Not saying there's anything wrong with a twin size bed, but if either of them are sick and I sleep with them, I end up sleeping on the very edge of the bed!