Awards * 120 heavy gauge interwoven steel coils for firmness and a full perimeter border wire to keep all the edges secure; Voted America's Best for Baby in 2013, 2014 and 2015, Sealy crib mattresses are made with care and high quality materials to give your infants and toddlers the best sleep. The Sealy Signature Precious Rest Extra Firm Crib and Toddler Mattress offers exceptional durability with 120 interwoven steel coils. Additional core structure includes full perimeter border wire, essential to keep the edges firm. Highly durable cushioning offers a firm yet comfortable sleeping surface for babies. Sealy Crib Mattresses are durability tested for lasting use for infants and toddlers. This entire mattress is GREENGUARD Gold certified for indoor air quality and low chemical emissions to help create a healthier sleeping environment for your baby. A reinforced waterproof cover and lock-stitched waterproof binding resists liquids, stains and helps keep allergens from clinging to the mattress. Easy clean surface since the entire mattress wipes clean with a damp cloth and mild soap to help maintain a sanitary sleeping surface. An airflow pocket keeps the crib mattress fresh without the use of small metal vent parts. Meets or exceeds all flammability, lead, phthalate and CPSIA testing and does not contain toxic fire retardants. Measures 51.63 x 27.25 x 5.25 for a snug fit in USA standard size cribs and toddler beds. Proudly made in the USA of US and imported parts.Sealy Mattresses