Designed to provide a safe comfortable and clean sleep environment, the new Dri- Tec® performance crib mattress features our best-selling, moisture wicking performance fabric, dual-sided React® specialty core and Air-X® ventilation that promotes air flow in, around and throughout the mattress. The 2-stage comfort core provides the infant side with a safe firm surface and the toddler side with a softer and adaptive surface that conforms to support toddler growth.