Essentia’s REM5 Classic Organic Mattress is the slow-response memory foam mattress you’ve been looking for. It’s made up of five layers for the ultimate comfort: a non-toxic Kevlar fabric liner and flame barrier, a slow-response foam with activated quartz (yes, actually) for cooling and pressure point relief, another layer of Beyond Latex Slow Response Organic Foam without the quartz for extra support, and a Global Organic Latex Standard (GOTS)-certified Organic Latex Support Core for back support — all of it covered with an organic cotton cover.