Advanced Sleep Technology has taken bamboo fibers and combined it with their 100% pure visco memory foam to create the 8" Black Diamond Visco Memory Foam Mattress This mattress offers a soft sleeping surface with medium support. Visco Memory foam contours to the body and relieves pressure points, yet supports the body weight with its supportive base foam. This mattress also features the AST patented Wedge, Edge to Edge support system for 20% more sleeping surface. The Air Channel base neutralizes the temperature of the mattress as it absorbs body heat. This ensures optimized comfort throughout your sleep experience. The mattress is covered in a bamboo fibers blend fabric. .