Bed Bug Blocker & Allergen Barrier: Sleep peacefully knowing our our mattress protector inhibits bed bugs, dust mites, pollen, and other allergens from settling into your mattress Triple-Seal Closure System: Our mattress protector features triple-seal protection with an interior barrier flap, hook-and-loop, and zipper closure Water & Stain-Resistant: This quality 6-sided encasement keeps your expensive mattress safe from spills and stains. The soft and quiet fabric includes a sturdy Water resistant layer for ultimate protection. Product Dimensions: Stretch sidewalls to fit mattresses up to 15" - Twin XL: 39" x 80" Certified Safety & Sustainability: Designed to meet rigorous testing standards to ensure they are safe for your family and the environment. The All-in-One Mattress Protector is free from harmful chemicals and odors and is OEKO-TEX® Standard 100 Certified. Care Instructions: Machine wash warm, permanent press cycle with like colors. Do not bleach. Tumble dry, no heat. Do not iron. Do not dry clean.