3 bed house, DS 6, DD 4. Since we moved a few months ago DS has slept on the trundle bit of DD's bed. We move him back into his own room, he moves back during the night. They are brilliant mates who argue and fall out like most siblings but they really like each other's company overnight. DD has large room so I have just moved DS's bed into her room (after discussion with them both last night - they were really keen on the idea) and will make DS's room a nice room for guests to stay. He can have the room back whenever he says he wants it...
The only person who isn't overly happy with the new arrangements is DH.
This all sounds reasonable no? I'm not missing anything?