REFINED Nature's Rest only uses Talalay Latex.Each layer is tested 9 times to ensure a consistent feel.Linen is 30% thicker than cotton.Linen and Talalay are hypoallergenic, resistant to insects and microbial growth. RESTORATIVE Talalay Latex delivers a unique, buoyant feel.Talalay and linen are breathable materials helping you to sleep cooler.Talalay is so durable, it is used in airplane tires.Luxurious, safe and eco-conscious certified by Eco Institut RESPONSIBLE Linen and Talalay are biodegradable.Rubber trees absorb carbon dioxide from the atmosphere.Linen is made from the flax plant, so it is technically a vegetable.Latex is made from the sap of the Hevea Tree.