The AllerEase® Waterproof Allergy Protection Zippered Mattress Protector features a quiet comfort top and is waterproof to protect your mattress from spills, stains, urine, and perspiration. The tightly knit fabric and durable zippered closure block out dust mites, pollen, pet dander, and other household allergens from settling in your mattress. This mattress protector fully encases your mattress with a durable zippered closure that provides a six-sided layer of protection between you and the allergens that collect in your bedding, while preventing new allergens from entering.Dimensions:Twin Mattress Protector: 39 in x 75 in x 12 inFull Mattress Protector: 54 in x 75 in x 12 inQueen Mattress Protector: 60 in x 80 in x 14 inKing Mattress Protector: 78 in x 80 in x 14 in Waterproof Allergy Protection Zippered Mattress Protector