Dual-Sided Comfort - The Dream On Me Zen 2-in-1 Mattress offers a firm 6" infant side for proper support during early development and a 1" copper-infused toddler layer that provides a cooler, cozier sleep surface as your child grows. Simply flip the mattress when your baby transitions to toddler stage for long-lasting comfort through the early years. Enhanced Support for Growing Sleepers - The ultra-firm fiber core on the infant side is crafted to provide strong, even support recommended for safe newborn sleep. As your child grows, the 1" copper-infused toddler layer helps release moisture and maintain a comfortable sleep temperature, promoting calmer rest and steady sleep routines from infancy through toddlerhood. Safety First – Expertly designed to meet or exceed ASTM and CPSC safety standards. This mattress is also GREENGUARD Gold Certified, screened for over 10,000 chemicals and VOCs to ensure cleaner indoor air and a healthier environment for your baby. Easy Cleaning - Accidents happen — and this mattress is ready for them. The removable, machine-washable zipper cover is designed to resist liquids and stains, helping keep baby’s sleep environment clean, fresh, and comfortable. Simply unzip, wash, and reapply for quick, convenient upkeep during newborn and toddler stages. Standard Fit & Long-Lasting Warranty – Fits all full-size cribs and toddler beds for years of use 52” L x 28” W x 6” H. Backed by a 5-Year Limited Manufacturer’s Warranty, giving parents added peace of mind.