Delta Extra-Firm Crib and Toddler Mattress: Provides the ideal firmness for babies and toddlers Lightweight, high-density polyester fiber Hypoallergenic, waterproof vinyl cover Delta Extra-Firm Crib and Toddler Mattress care: wipe clean with a damp cloth and mild detergent GREENGUARD and CertiPUR-US certified Extra firm crib mattress comes with a 15-year warranty against manufacturer's defects in materials and workmanship Extra firm crib mattress dimensions: 51.63"L x 27.25"W x 6"H Questions about product recalls? Items that are a part of a recall are removed from the Walmart.com site, and are no longer available for purchase. These items include Walmart.com items only, not those of Marketplace sellers. Customers who have purchased a recalled item will be notified by email or by letter sent to the address given at the time of purchase. For complete recall information, go to Walmart Recalls.