A pillowcase, or sleeping case, is what goes over the pillow you rest your head on at night. It has an entry on one end into which you slip your pillow. As with sheets, you’ll want to choose pillow cases that coordinates with your style of decor and is made of authentic Egyptian cotton.
Pillow shams serve a decorative purpose on your bed; they can have the same quality as bed sheets and often come with decorative embroidery or applique embellishments. You can put them over any sized pillow to dress up how the pillows look on the bed. Because shams aren’t handled as much as pillowcases, they’ll look crisp and new each time you use them.