Dourxi 3-Layer 6 Inch Crib Mattress Dual-Sided | High Density Hard Foam for Infants, Cool Gel Memory Foam Side for ToddlersDUAL FIRMNESS FROM INFANCY TO TODDLERHOOD Our Dourxi crib mattress contains 3 layers of foam, providing the right firmness for your baby at all stages. Designed with an inner open cell Foam Core for airflow, and features a temperature regulating to prevent overheating, eliminate sweaty backs, and improve sleep quality. Cool gel memory foam on the toddler side provides your growing toddler the luxurious comfort and support they need. SOFT WASHABLE