1-Inch Slab Memory Foam Mattress Topper, TwinXL Adds an extra level of comfort and support to a mattress or air mattress Relieves pressure points by adjusting to the body's contours, reducing tossing and turning 1-inch thick visco-elastic memory foam Spot clean with warm water and mild soap Twin XL size measures 34 x 76 x 1 inches Made in the USA