Evolur Sleep Breathable Dual Stage Comfort-Lite mattress offers an affordably priced yet offers all the essential pediatrician recommended support for your infant and added 2 in 1 comfort and contour ability for the toddler stage which includes a breathe flow technology. Ultra-lightweight makes it especially easy to change the sheets and gentle on the crib’s finish. The hypoallergenic, antibacterial, CertiPUR-US certified layers mattress covered with a breath-flow material on the infant side and a waterproof cover on the toddler side with lock stitch seams. Evolur sleep mattress meets the Federal Flammability Standard, rest easy knowing this mattress tested for phthalate, lead, and constructed with quality materials and workmanship in the USA.