What Onyx said.

My girls have shared for most of their lives through their own choice - we had a house full of unused bedrooms too for a while. When I fell pregnant this time the girls each had their own room with a queen size bed each and they chose which room to sleep in together in the same bed. They then decided a couple of months ago that they wanted to sleep in their own beds, but share a room so they're now both in DD2's old room, DH has moved his office (he works from home so not just a home study) into DD1's room and the baby will have DH's old office, which is the smallest bedroom.