Bed Topper Simmons Beautyrest 5 Zone Contour Comfort Polyurethane Topper (Queen) Head and neck zones are designed for continuous comfort Shoulder and mid-leg zones are designed to reduce tossing and turning Lower back and torso zones provide soft, yet supportive comfort where you need it most Great for platform beds. Requires foundation or box spring with standard bed frames Dimensions: 58" W x 72" L, Thickness: 2"