The Naturepedic Pillowcase set includes two100% certified organic cotton 400 thread count sateen pillowcases. 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.