I like that the bottom bed's mattress is on the floor 1) easier/less expensive to build; and 2) lower height for top bunk.
Transform the KURA bed... | 15 Ikea Hacks For Your Child's Dream Bedroom
a ladder and slide in the room that goes up into a little step up, play room. This is a bedroom or playroom for little kids if you take the pink away it could be for boys and girls room. This is some brilliant designing! Love it