THis is an awesome kids room with bed underneath and computer/study area up top. Another slide in the house. I would say that I would worry the kids would grow out of it but in reality, nah.
Hot air balloons are by Authentic Models bring color to the contemporary kids bedroom [Design: Covadonga Cánovas]
4 steps to a book nook, from Nickles Nickles Valk Chuah Land of Nod
Design Playrooms for kids
More Room For Grumpy Snowman (Young House Love)