Sleep Number® Zip and Block Pillow Protector Will Keep Out Moisture and Dust Mites
Soft-knit polyester fabric with an ultra-thin breathable polyurethane back provides protection for your pillows from allergens and dust mites. Tightly woven to block out allergen molecules of less than 1.0 microns in size. Binding on inside seams offers extra strength and protection. 100% polyester backed with polyurethane. Includes one pillow protector. Zip and Block Pillow Covers are made in China.