We use GOTS certified organic cotton. The organic cotton is handpicked to ensure its purity. The fabric is free from polyester fibers, pesticides and chemical flame retardants. It provides you with a soft, comfortable sleeping surface that is both safe and durable. The Global Organic Textile Standard, also known as GOTS, provides an organic certification program that is respected internationally. These strict standards ensure that manufactured textiles, like our cotton fabric, are processed and handled with organic integrity—from raw material sources, to manufacturing practices, and all the way to the finished product.