A pillow protector is a protective cover designed to encase a pillow, safeguarding it from dust, allergens, and spills. These covers are typically made from materials like cotton or polyester and can be easily removed for washing. They help extend the life of the pillow by preventing wear and tear. In addition to protecting against dirt and moisture, pillow protectors can also provide a barrier against bed bugs and other pests. Many are hypoallergenic, making them a great choice for individuals with allergies. Using a pillow protector can enhance sleep quality by ensuring a cleaner and healthier sleeping environment.