Designed for ultimate comfort, the Black Pearl Firm mattress features CoolTouch designer stretch knit fabric, infused with copper thread technology for a cool and luxurious feel. The CoolGel high-density foam, combined with a Joma Wool® Comfort Layer and hand-tufted craftsmanship, ensures lasting durability and a restful sleep experience. With a tri-zone full-dimension encased coil unit, dual steel coil perimeter edge and dual-layer high-density comfort foam, it offers targeted support and a comfortable foundation, making it adjustable power base-friendly for customizable sleeping positions.