Instantly makes sleeping more restful, comfortable, and supportive similar to zero gravity. * 52 x 73 x 12 with 3 inches of 4 lb memory foam conforms to your body perfectly, 9 inches of high resilence base * Made in the USA using enviromentally friendly processes. PURGreen Certified * Memory foam reduces pressure points that cause you to toss and turn, so you sleep better. * Mattress features 3 inches of four-pound density with the famous gel-like feel.