Night Therapy Memory Foam 8 Inch Mattress, King Comfortable and conforming: 1.5" Memory Foam, 2" Pressure Relieving Comfort Foam Durable and stable: 4.5" High-Density Base Support Foam provides long-lasting durability and stability Highest quality of foam is CertiPUR-US certified for durability, performance and content Smartly shipped using patented technology that allows the mattress to be efficiently compressed, rolled and shipped in a box conveniently to your door