Duo™ - Certified Organic Mattress Latex The Supplemental Foundation Layer (or

The Supplemental Foundation Layer (or "SFL™") is a coconut coir mattress pad made of natural coir fiber

It is then surrounded by an outer chamber filled with the certified organic wool

for cool sleeping

It starts with a 3” core of firm

Duo™ - Certified Organic Mattress Latex The Supplemental Foundation Layer (orThe Duo organic mattress is fully customizable so each sleeper can tailor comfort to their own personal preference. Start with one of our tried and true configurations or build your own. To adjust the comfort of your Duo mattress, simply unzip the cover and swap the order or comfort of the layers. Each of the middle two support layers feature an even support, smooth surface and can be split vertically or made continuous depending on the variation in