Meet the Graco Ultra 2-in-1 Premium Dual-Sided Crib & Toddler Mattress — a dual-sided crib & toddler bed "mattress in a box" that features an ultra-soft cover and a "quick unzip" feature for quick cleaning in case of accidents. Designed to adapt to your growing child, the Graco Ultra 2-in-1 Premium Dual-Sided Crib & Toddler Mattress has two unique (and clearly labeled) sides: a firmer side for infants, and a softer side for toddlers. The Graco Ultra 2-in-1 Premium Dual-Sided Crib & Toddler Mattress is GREENGUARD Gold Certified, Formaldehyde Free Certified by UL, OEKO-TEX STANDARD 100 Certified, Baby Safety Alliance Verified, and has a CertiPUR-US Certified foam core. The Graco Ultra 2-in-1 Premium Dual-Sided Crib & Toddler Mattress is free of fiberglass and free of chemical flame retardants. Features a removable, comfortably soft mattress cover with a waterproof sleep surface. For easier care, this zip-off mattress cover is machine-washable (machine wash in cold water on delicate cycle, hang to dry – do not place in dryer machine). Fits into any standard full-size crib or toddler bed. Dimensions: Length (52.00 inches) x Width (28.00 inches) x Height (up to 6 inches); Weight (12.67 pounds). Mattress core (100% polyurethane foam). Mattress cover (100% polyester). Backed by a 10-year limited manufacturer’s warranty. Exclusively manufactured by Stork Craft Manufacturing (USA) Inc.