Serta - Organic Mattress Cover: * Organic cotton top for luxury, comfort and softness * Machine washable * PVC- and phthalate-free * 100 percent waterproof underside protects mattress from liquids and spills * End-to-end elasticized fit to prevent sliding and shifting * Fits all standard crib mattresses 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.