The pad measures 58 by 77 by 3 inches and covers the entire surface of a queen mattress. It carries a density of 2-1/2 pounds per cubic foot. Thanks to its therapeutic features, it benefits the bed-confined and is frequently used in hospitals. It is also great for pregnant women, the elderly, and anyone who needs a good night rest. Spot cleaning with warm water and a little soap removes most stains. This product is made in the USA and comes backed by a 5-year warranty.