Diamond Matrix Copper Cooling Hybrid Mattress - Twin XL FirmProduct Overview This Twin XL hybrid mattress combines advanced cooling technology with firm support, ideal for bedrooms needing a balance of comfort and durability. It features copper infused memory foam to regulate temperature for a restful night's sleep. Key Features Copper infused memory foam enhances cooling by drawing excess heat away from the body Heat and moisture wicking fabric helps regulate temperature and maintain comfort Hi definition