Fully elasticized fitted sheet are generously made to accommodate both deep and pillow-top mattresses. Bedding sheets are made from ultra soft, luxurious fabric that is woven from cotton and polyester fiber, these sheets blend cotton with polyester that is obtained from recycled plastic bottles. Grace Home Fashions REKOOP Twin Extra Long Cotton Blend Bed Sheet Polyester in White | 250 CVC TWXL WHT PPR