Prolong the life of your pillow by adding a pillow protector. Sleep Number pillow protectors help minimize dust and particles that can accumulate in your pillow. Choose from tightly-woven cotton, or other pillow protectors designed to help keep your pillow refreshingly cool at night. Select Comfort features pillow protectors that not only help regulate heat, but also provide extra protection against bacteria, dust mites, and odors. Our Sleep Number pillow protectors are a compliment to your Sleep Number adjustable bed and just what you need for a sound, natural sleep.