I have 4 bedrooms plus a study. The girls currently share a room, we have a dedicated play room and a guest room. Prior to that they had separate bedrooms and XDP had his own bedroom.

Getting the toys out of the living room into the playroom has been great. I've also put a sofa bed in there so that they can have sleepovers in there when they're older and/or I can have people over for dinner and the kids can watch a movie in the playroom so that the adults can actually have a conversation

It's also much easier getting them to sleep in the same room rather than in separate rooms. Obviously, we have nights where it all goes to pot but generally, they're pretty good.