The Natural starts with a 2″ Medium Latex Layer of the world’s finest pressure-reducing latex, for a “float-on-cloud” feeling of deep, restful comfort. 6″ 100% Dunlop Latex Core Six inches of resilient premium latex, specially vulcanized for a denser feel that is comfortably supportive, while resistant to sagging and body impressions. Natural latex is so durable because of its bouncy resiliency – since your mattress doesn’t get indentions from the weight of your body, it can last decades when cared for and placed on a proper mattress foundation. That is why on the core unit we offer a limited lifetime warranty. A latex mattress can give you peace of mind on many levels. The “luxury” of an all latex mattress is actually good for your health, good for the environment, and good for your wallet. WARRANTY: Limited Lifetime Warranty