Make an investment in healthy sleep with the Thomasville® 936 Natural Flex® Latex Mattress. The 3" Dunlop latex foam support layer features our exclusive, patent pending STAY COOL channel venting. Multiple channels sculpted directly into the foam's surface allow for refreshing air flow and circulation. A tri-zone design provides you with enhanced lumbar support. The 6" high density support foam base also features a tri-zone channel vented design, adding resiliency, lasting durability and support. Patented perimeter support provides a solid circumference around the foam comfort layers, preventing edge sag.