The Sealy Airy Night Diamond 2-Stage Dual Firm Baby Crib Mattress and Toddler Mattress offers two-sides of comfort inside and outside. The cover offers airy mesh made with a silky rayon from bamboo material that is gentle on baby’s skin on the infant side. Flip it over for an antibacterial wipe-clean surface made with lab-tested hospital-grade material. Baby’s crib mattress is a grow-with-me 2-stage dual firmness design. The entire inside of cotton and sustainable fiber is extra firm yet gentle on babies. Flip it over (the infant side is tagged) and there is a cozier toddler side. Since waterproof baby mattresses are so important both sides offer a waterproof barrier and make it easy to clean up messes. You can simply wipe the cover clean and easily spot clean away any messes quickly. Sealy baby mattresses use an exclusive fiber core uses hypoallergenic airy cushioning throughout made with a sustainably-sound materials. The entire core is surrounded by a natural cotton wrap for comfort. Square corner design fills out the corners of your baby s crib for snug fit. Perfect fit in all standard full-size crib and standard full size-toddler bed frames for years of grow-with-me use in baby s nursery. Measures 52 x 28 x 5.75 inches. Weighs less than 11 pounds – making it easy to change baby mattress sheets. GREENGUARD Gold Air Quality Certified for a healthier indoor nursery environment! Passes ASTM/CPSC standards. Firmness tested to help reduce the risk of suffocation and ensures a snug fit inside baby s crib. Premium comfort with a lifetime warranty for workmanship and materials.