This Spinal Response memory foam mattress allows a comfortable rest. The 1-inch gel-infused memory foam top layers provide a clean and healthy night's sleep. Mattress measures 15 inches thick Materials: Aloe-infused gel memory foam First layer: 1-inch, 5-pound density Gel-infused memory foam Second layer: 2-inch, 4-pound denisty high-resiliency Gel-infused memory foam Third layer: 3-inch, 4-pound density high-resiliency memory foam Base layer: 9-inch, high-density reflex base foam Dimensions: 15 inches high x 59 inches wide x 79 inches long Memory foam is resistant to dust mites and is naturally antimicrobial Originally designed for NASA, this space age foam cradles your body Temperature sensitive foam adjusts to your body Improves circulation while reducing pressure points 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 Top Cover is quilted with a poly jacquard aloe vera material and handles Firmness level: Firm Memory Foam Tips: Remove from packaging within 72 hours of receipt to maximize memory foam expansion. This product arrives very tightly packed. Unwrap and allow 48 hours for this product to return to its original shape. Being sealed in plastic packaging sometimes traps odors. After unwrapping, allow product to air for a few hours. 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.