Kids bed: Get a kids 3ft single metal curved bed frame! Construction: A modern steel frame with a curved, futuristic headboard. Upgrade: Upgrade your deal to get a 3ft memory sprung mattress to go with it. Mattress: 8-9″ deep with open coil springs, with memory foam top for a medium soft feel. Sprung base: Features a sprung slatted base to give natural bounce. Funky: This bed will look super-cool in any childs bedroom!