From the Signature Collection. Synonymous with Gingerlily, this classic fitted sheet is at the heart of the Signature collection and is made from pure long-strand Mulberry silk. Silk has been seen as the ideal fabric for bedding for many years as with its high protein content, it is naturally hypoallergenic and offers various health benefits for both the skin and hair. Mulberry silk Machine wash Imported SIZING King: 112"W x 112"L.