Certified Waterproof Protection:A built-in TPU layer blocks liquids to safeguard your mattress from spills and stains, extending its lifespan-all while meeting 's highest safety standards for chemical-free peace of mind. 4-Layer Comfort & Year-Round Coziness:Four-layer construction blends plush softness with durable waterproofing, creating a breathable barrier that keeps you comfortable in any season without sacrificing feel. 22" Deep Pocket Secure Fit:Full elastic edging and extra-deep pockets fit mattresses up to 22" thick, ensuring a snug, non-slip fit that stays in place through every toss and turn. Material:PolyesterCertifications:certified for chemical safetyWhat's Included:1 Mattress Pad