Protect-A-Bed Luxury Waterproof Pillow Protector, Queen Thermo-regulating fibers are the coolest waterproof protector to sleep on. Waterproof: Polyurethane film backing repels liquids like urine and sweat. Breathable barrier fabric and unique Breath-A-Vent for maximum airflow while sleeping Dust Mite and Allergy Barrier: Miracle membrane backing provides a healthy sleep zone for your family. Fits queen size pillows. Dimensions: 21 x 31 in. One protector per package