The Harvest Green Mattress exclusively features Dunlop latex as we believe it to be the healthier option as well we believe it's a more eco-friendly choice.If your shopping you may have discovered that there are two manufacturing processes for producing latex foam.  One is Dunlop and the other is Talalay.  Both of these begin with all-natural latex sap harvested from Hevea Brasiliensis Trees, and both can be made in a wide variety of firmnesses.Our 100% natural Dunlop Latex ultimately requires far less processing, additives in the production process.  It is a simpler process that is ultimately more energy efficient to produce and creates a healthier, durable product that is more eco-friendly.