Natural latex hybrid coil mattress latex comfortable cushion top layer fully natural latex on the top layer of the organic mattress is made from the sap of Thailand’s rubber tree and adopts latex technology a healthier manufacturing process without gelation reagents in its formula. The premium latex improves bounce, elasticity, and responsiveness on top of the mattress. Natural latex doesn’t contain any chemicals or other synthetic latex, blended latex, making it a healthier choice for all sleepers. Size: Small Double (4')