Navy is a wonderful choice for a child's bedroom, especially combined with Chinoiserie. In the room above, Alessandra Branca pairs navy stripes and a Chinoiserie wallpaper. I love the Tory Burch bunk bedroom just below with the navy and white Greek key. Amanda Nisbet pairs navy with pink and Greek key. In the Miles Redd bedroom, I can't recall whether the striped walls are navy, black, or dark brown, but navy and white stripes would be perfect with the light blue and Greek key. The inspiration board by Parklin Interiors has great ideas for combining navy, raspberry, and Chinoiserie in a sophisticated but fun room. My inspiration board for a navy bedroom would work as a teen boy or girl's room or as a guest bedroom.