not_found Highlights: Cotton mattress topper with 4in thickness. Box-stitched design. Premium cooling dual-layer memory foam. Polyester fiber-foam blend filling. 80in L x 60in W. Zipper closure. Machine-washable cover Specifications: Dimensions (Overall): 80 Inches (L), 60 Inches (W), 4 Inches thick Fill Material: 20% Down Alternative, 80% Foam Fabric Name: Woven Textile Material: 100% Lyocell Protective Qualities: Moisture-Wicking, Non-Skid Backing, Waterproof Layer Thread Count: 300 Industry or Government Certifications: CertiPUR-US Certified Foam Fits Maximum Mattress Depth: 0 Inches Care and Cleaning: Machine Washable Cover, Tumble Dry