The Naturepedic Organic Luxury Sheet Set includes 100% certified organic cotton 400 thread count sateen fitted and flat sheets plus one or two pillowcases. This premium sheet set is available in both natural and white colors and fits mattresses up to 15" deep. A subtle and classic finishing touch for any decor. Soft and pure, organic cotton is grown without synthetic insecticides, herbicides or genetically modified organisms (GMOs). Compared to conventionally grown cotton, organic cotton eliminates nasty pesticides and promotes more fertile soil while helping protect our bees and songbirds. By choosing certified organic cotton, you’re not only contributing to healthier sleep, you’re helping build a cleaner, safer, healthier world.