Healthy Zzz Allergy Barrier Mattress Encasement - King - covers mattresses 78" x 80" x 17" - 100% Polyester - brand new in package - $80 firm (mattress encasement cover only, no mattress included) FEATURES: - blocks dust mites & bed bugs - doctor recommended - breathable - blocks allergens - zippered encasement - water resistant - washable - MicroOne PRODUCT OVERVIEW: Perfect for allergy and asthma sufferers! HealthyZzz™ mattress encasements provide the highest level of protection against allergens and micro-toxins. Our advanced fabric technology, MicronOne™ has a weave so tight that moisture can get in and micro-toxins can't get to you, creating a comfortable, yet effective barrier between you and the allergens that occur naturally in your bedding. Washable: Wash on normal cycle with warm water (120 degrees) and detergent, and then tumble dry medium. Never use bleach when cleaning. - Patented MicronOne™ technology protects your sleep by creating a clean barrier between you and the micro-toxins that build up naturally over time in every mattress - HealthyZzz™ mattress encasements surround the entire mattress, zipping on and preventing dust mites and bed bugs from migrating from your bedding to your body and vice versa - HealthyZzz™ mattress encasements are totally waterproof and remarkably breathably (no sweaty, sticky, plastic feel), so you don't have to sacrifice comfort for protection