AllerZip Extra Thick Queen Mattress Cover AllerZip Extra Thick Queen Mattress Cover Details Description Keep bed bugs away! AllerZip bedding serves as a barrier against allergens, including dust mites, pet dander, pollen and mold. Breathable, absorbent, stainproof and waterproof. Machine washable. Product Details This Mattress Cover is meant for thicker Queen-sized matresses, and is approx. 6-8 inches deeper than the traditional Queen cover.