Sleep Comfort 2-Inch Gel Memory Foam Big Bump Topper, Twin 100% Cotton Made in US 300 thread count cotton top Skirt guaranteed to fit 20 inch mattress waterproof nanotex stain resistant finish polyester fiber fill Draws uncomfortable warm air away from your body Sculpted design provides improved air flow Includes 300 thread count Egyptian cotton cover with 17-inch skirt Originally designed for NASA this space age foam cradles your body, reducing pressure points that cause tossing and turning Memory foam is resistant to dust mites and is naturally antimicrobial