Enjoy restful, restorative sleep and express your concern for the environment with the Simmons ® Natural Care ® mattress collection. Simmons ® Natural Care ® mattresses are made from 65% natural rubber tree based latex (derived from rubber tree sap), which provides a soothing sleep surface that helps relieve pressure points across the body. The latex is hypoallergenic, as well as resistant to dust mites, mold and mildew. The natural latex and fabric used in Simmons ® Natural Care ® mattresses are biodegradable, and the soy-enhanced base foam offers the same support as standard polyurethane foams, but uses less petroleum-based oil. Simmons ® Natural Care ® mattresses are extremely resilient and durable, backed by a 20 year limited warranty.