Coyuchi Sateen Fitted Sheet, King, White Sateen Sheet 100-percent Organic Cotton Machine washing on the gentle or delicate cycle with warm water and non-phosphate soap. Line dry or tumble dry low and remove promptly Sateen Sheet 100-percent Organic Cotton Machine washing on the gentle or delicate cycle with warm water and non-phosphate soap. Line dry or tumble dry low and remove promptly 100-percent Organic Cotton Machine washing on the gentle or delicate cycle with warm water and non-phosphate soap. Line dry or tumble dry low and remove promptly