Bedding covers are items used to cover mattresses, pillows, and other bedding items. They come in a variety of styles and materials, and can be made from cotton, polyester, or other fabrics. Two common types of bedding covers are shams and ticks. Shams are decorative pillow covers that are usually square or rectangular in shape and often feature embroidery or other embellishments. Ticks are fitted covers that are designed to fit snugly over mattresses, box springs, and other bedding items. Both shams and ticks are available in a variety of colors, patterns, and materials.