Engineered for a firm feel, balanced with ergonomic support. Perfect for those desiring cushioned comfort and a firm supportive sleep surface. The top comfort layer features copper sleep technology for a fresh, clean & healthy sleep experience! Copper is inherently antimicrobial, antibacterial, odor resisting & temperature regulating. Copper provides a natural defense against germs, bacteria growth and odors, so you'll breathe easier and wake feeling rested and refreshed!