Pillow covers offer practical benefits such as easy maintenance and versatility. They can be easily removed and washed, ensuring hygiene and extending the life of the pillows. The covers allow for quick style changes, enabling users to update their decor without purchasing new pillows. They also protect the pillows from dirt, stains, and wear, maintaining their appearance and functionality. Additionally, pillow covers are often available in various sizes, colors, and patterns, providing customization options to suit different tastes and interior designs.