My brother and I shared a huge bedroom with multi-coloured curtains, matching bed spreads (his was green, mine was pink) and built in matching pine desks with shelves for books and toys. We would wake up with the birds and play hide and seek, or build forts out of pillows. I have said this here before, but I am a big believer in children sharing a room, even if you have the space for them not to. I think it encourages silliness and squables, deep friendship and daily compromise. If their bedroom was a teensy bit bigger, I would put all three of my children in the same room, with our third bedroom acting as an office-cum-play-read-watch movies room. I would put two bunk beds in, with a spare bed for a visiting pal/Yiayia, and leave them to bicker, bond and figure it all out.