Kolcraft is a family-owned and operated company that has manufactured crib mattresses that parents have depended on for decades. The Kolcraft Pediatric 800 Crib Mattress offers 80 dependable, extra firm posture supportive coils that respond to their movement. Our airy layers support and comfort the baby all around. Hypoallergenic materials, no added flame retardants. A waterproof surface is a must and the PermaDri reinforced cover is 100% waterproof as well as the edging. Cleans easily with a damp cloth. An airflow pocket allows the mattress to safely breathe without metal vent holes, a unique Kolcraft design. Tested for safety including GREENGUARD GOLD Certified air quality testing to help ensure a healthier sleeping environment for babies, and the GOLD standard is a stringent test for children's products. There are no added flame retardants and it passes CPSIA testing so there are no sharp points, lead, or phthalates used in this mattress. Passes voluntary ASTM crib mattress standards for safety and quality. Fits U.S. standard cribs and toddler beds so you can pair it with your favorite crib. Measures 51.63L x 27.25W x 5H for a perfect fit in baby cribs and toddler beds.