RRP £349 The modern design of this Zinus Kiernan bed makes a bold statement with its horizontally padded upholstery in dark navy blue. Built sturdy with a strong steel frame at its core and wooden slats to support any spring, memory foam or hybrid mattress, this platform bed arrives in one wonder-filled box with all the parts needed for assembly - frame, legs and wooden slats - conveniently located in the zippered compartment in the back of the headboard.