A grandmother to 13, the owner of this 1928 Weston Cape sought a room suited for overnight visits from them. “She wanted to make a space where the kids would feel comfortable sleeping, playing, and reading,” says Tiffany LeBlanc, the interior designer hired to transform the existing second-story bedroom. Dated wallpaper and mismatched furniture made the room feel small. Striving to give the space a bunkroom feel, LeBlanc worked with architect Michael Collins to design a built-in bed with a trundle. To offset the custom splurge, other lively furnishings were purchased off the shelf. Walls are painted a soft yellow punctuated by pops of orange and deeper yellow. While clearly a kid-friendly space, the room is also refined, says LeBlanc. “It will grow with the kids and is sophisticated enough that Grandma can live with it on a daily basis.”