This queen upholstered platform bed is built around a mattress over 9 in thick, which keeps the sleeping height standard while the frame itself stays a low 38 in tall. Solid wooden slats over center support legs carry up to 550 lbs, so no box spring is required. High-density foam behind blue linen holds the button-tufted grid in shape where a sleeper leans back to read. Foot pads under the middle legs thread up or down to level the frame on an uneven floor. Six inches of clearance underneath fits flat bins or a vacuum head. Assembly is required.