“The Natural Sleep Solution”. A 3-part European system ergonomically designed for comfort and to relieve back pain (a study by the Canadian Memorial Chiropractic College found that the Natura Sleep Solution reduces chronic back pain by 40%). An untreated solid maple wood slat frame is covered with a latex foam mattress then topped with a wool mattress pad. The wood slat frame and foam mattress come in two individual sections–each can be customized to support the sleeper’s spine. Choose their “Organic IV” model made with100% natural latex foam, untreated sustained-yield woods, organic cotton, and organic wool–other models contain some synthetic materials. This link goes to the manufacturer’s website. They do not sell direct, but they have a store finder, and Natura beds are sold on many websites.