Protect - A - Bed AllerZip Smooth Pillow Protector - King is specially designed for allergy sufferers because it will provide your pillow a superior protection for a healthy and allergy-free sleep. It features a unique Allerzip seal which will create a perfect barrier against bed bugs, dust mites, bacteria and other allergens. It also highlights an advanced Miracle Membrane which ensures a smooth surface, making this air vapor porous, absorbent waterproof. You can now sleep soundly at night knowing that you have the best defense against infestation. This product is machine washable and it comes with 2 protectors per pack that’s designed for a King size bed. It also comes with a 5-year warranty.