Best Price Mattress 12-Inch Grand Memory Foam Mattress, California King Memory foam with Green Tea, Charcoal and Natural Castor Oil which minimizes chemical odor and growth of bacteria in a natural way Pressure relief foam eliminates pressure points Natural Green Tea Extract and Active Charcoal are infused for a natural odor protectant Real bamboo fibers used for the construction of the cover CertiPUR-US Certified/10 year warranty