Joe Alexander At Keetsa, it starts with eco-friendly foam. Keetsa’s “Eco-Foam” mattresses replace 20% of the foam’s petroleum oil with natural castor bean oil, removing synthetics and toxic off-gassing typically associated with memory foam mattresses. The result is less volatile organic compounds in your home, and no detected formaldehyde. Alexander, General Manager at Keetsa, is just as proud of the quality of the product as he is the eco-friendly life cycle. Keetsa offers a 20-year, non-prorated warranty on each of its mattresses.