From BodiPEDIC, this bed topper features: The cooling gel-infused memory foam mattress topper from BodiPEDIC provides 4-inches of cool comfort and supportive pressure-relief for a more refreshing night's rest Gel-infused Aero-Fusion memory foam offers pressure-relieving support Built-in Aero-Fusion Ventilation Technology for maximum airflow Luxury cooling circular-knit fabric cover adds a layer of smooth softness Anti-skid bottom fabric ensures topper stays in place atop your mattress Memory foam fill Cover gram weight: 300 GSM Diamond cover pattern 55% polyethylene, 45% polyester Queen approx. 79.5" L x 59" W x 4" H; weight 21.19 lbs. King approx. 79.5" L x 76" W x 4"H; weight 26.94 lbs. Spot clean only using mild detergent 5- year limited manufacturer's warranty Imported. BodiPEDIC 4-Inch Cooling Gel-Infused Memory Foam Mattress Bed Topper