Size:California King Our Hevea Grove collection starts with pure sources to which we add 30 years of latex expertise and combines with a passion for simple, modern design to offer the finest in natural mattresses. Natural latex creates the ideal sleeping environment: Comfort: Natural elasticity so it has responsive body support ; silently expands and conforms as you move (no sinking or cradling) Purity: Naturally hygienic and hypo-allergenic Freshness: Naturally breathable and self ventilating; maintains a comfortable temperature as you sleep Natural latex mattresses have a high resistance against lumpiness, sagging, or aging so they are much longer lasting Natural latex comes from a tropical rubber tree that pr