The OrganicPedic® Duo Knit three-layer mattress provides dual sleep zones, and has three layers of premium GOLS-certified organic natural rubber latex surrounded by certified organic cotton. The layers are encased with our signature OrganicPedic® knit quilting. The dual comfort zone is available in plush or firm allowing a customized comfort to accommodate each sleeper’s preference. The firm comfort is achieved with a 3” base layer of firm latex, then topped with two 3” layers of medium latex. The plush comfort is achieved with a 3” base layer of medium latex and topped with two 3” layers of soft latex. The optional sculpted surface of the top layer provides the ultimate in comfort and pressure-point relief.