This Sleep Sync Memory Foam Mattress is pressure sensitive, molds to your body, relieves pressure points and encourages proper spinal alignment. The Rayon Fabric from Sustainable Bamboo Fiber keeps you comfortable all night. 12 inches deep Memory foam, Support foam, Rayon Fabric from Bamboo fibers Medium Firm 3-pound Memory Foam, 1.8-pound Convoluted Foam, 1.8-pound Foam Spring Support base Dimensions: 12 inches high x 54 inches wide x 75 inches long Pressure sensitive memory foam molds to your body to provide increased circulation and gentle support Improves circulation while reducing pressure points that can disrupt your sleep Mattress eliminates motion transfer and uncomfortable pressure points Never needs turning Disperses your weight evenly Mattress can be used with an existing frame Great for platform beds and slatted frames Meets all flammability standards 100-percent Rayon Fabric from Bamboo fibers Memory Foam Tips To maximize memory foam expansion; remove from packaging within 72 hours of receipt. This product arrives very tightly packed. Please unwrap and allow 48 hours for this product to return to its original shape. Being sealed in plastic packaging sometimes traps odors. A few hours of airing usually removes the odor. Due to machine cutting manufacturing processes, there may be slight variances in the dimensions of this product. Due to the nature of Memory Foam the firmness level of every item is unique. Please be advised that even similar products may produce different firmness results Once opened this product is non-returnable.