Levinsohn Fresh Ideas Allergy Mattress Cover Protects Against Pollen, Dust Mites, and Allergens, Full, White cotton-blend Mattress protector is designed for allergy and asthma suffers, doctor recommended. Protects against pollen, dust mites, dander, and other allergens from settling in your mattress. Full mattress protector has zip closure for full barrier protection, mattress is covered on all sides. Cover is made with a soft, cotton blend fabric that is comfortable, breathable, and quiet. Machine washable for easy cleaning, no ironing required. Full mattress protector measures 75 x 54 inches.