Sheets and Pillow cases are and essential component of every bedding cainet. Many people like their bedding to be cozy and confortable to sleep. For a better sleepig atmosre, different people tend to have different hoices of fabrics. Pillowcases are an integral part of every bed sheet set and offer the same comfort and luxury as your sheets. sheets comein different forms, simple sheets,elasticized or fitted sheets and flat sheets.