The Beautyrest World Class Level 3 innerspring mattress delivers 14.25” of luxury comfort, durability, cooling, and advanced support. Designed for back and stomach sleepers, its firm comfort level offers a solid feel with minimal give. World Class Relief HD foam and ActiveRespsonse Max memory foam provide outstanding comfort and pressure relief that adapt to your body. The InfiniCool Max system features three cooling layers: surface-level cooling fibers, plant-based cooling technology, and bio-charcoal-infused foam for optimal temperature regulation. 1000 Series Pocketed Coil technology ensures individualized support and motion separation. Made in America and compatible with adjustable bases. Mattress protector recommended.