Like Organic Organic? The Best Organic MattressBirch's Luxe organic mattress is our new favorite organic model. The Avocado Green is 11 inches thick and made from organic latex, organic wool, and organic cotton. Saatva's Zenhaven is made of organic latex protected by an organic wool liner and an organic cotton cover. Best Value Organic TopperTurmerry's natural latex mattress topper is one of the best value toppers you can get.