One of the goals in the attic-turned-playroom design was to create overflow sleeping space. The solution: these imaginative built-in bunk beds. Papering the back wall in black-and-white wallpaper with little city scenes adds graphic punch and a fun visual surprise.

Tucked into a narrow niche, the charming window seat is deep to accommodate two kids or several stuffed friends. The white base and gray cushion are ideal foils for the bright mix of pillows, toys and the cheery yellow shade.

Because the backdrop of the play room is simple, the space can easily evolve by swapping out the soft goods and bringing in more grown-up accessories.

For unique character, the designer included vintage details like the globes above the desk and the brass animals. Like the window seat, this built-in desk is a smart choice for a smaller space, fitting handily into the sloped ceiling alcove.