My Green Mattress Simple Sleep 7" 100% Natural GOLS Certified Organic Latex Mattress with GOTS Organic Cotton and Natural Eco-Wool Cover (Twin XL) GREENGUARD Gold Certified. Six inches of 100% Natural GOLS Certified Organic Dunlop latex (32-36 ILD / Density: 90). Total mattress height is 7 inches, which includes the GOTS certified organic cotton quilted cover with Eco-wool. This one-sided mattress is proudly handcrafted in Illinois, USA. No flame retardant chemicals - Eco-wool acts as a natural flame barrier. No Synthetic Foams. Our 100% Natural GOLS Certified Organic Dunlop latex is sustainable, hypoallergenic and will not off gas like traditional foams. Free Shipping to the continental US. 100 Night Sleep Trial - 10 Year Warranty