The KATU Organic 2-Stage Crib Mattress is a 100% organic, plastic-free sleep solution designed for your baby’s safety and comfort. Measuring 52" x 28" x 5" and weighing 15 lbs, it fits standard U.S. cribs and meets ASTM and CPSC safety standards. Featuring a dual-sided design, the infant side (0-12 months) provides firm support for safe sleep, while the toddler side (12 months+) offers a slightly softer feel for lasting comfort. Unlike conventional options, KATU uses only GOTS- and GOLS-certified organic materials—free from polyurethane foam, VOCs, and toxic chemicals. The mattress is naturally breathable and temperature-regulating, keeping your baby cool and comfortable. While not waterproof, pairing it with a waterproof protector is recommended. With every purchase, KATU plants a tree through Trees for the Future, reinforcing its commitment to sustainability. Backed by a 100-night trial, free U.S. shipping, and a lifetime guarantee, the KATU mattress ensures a safe, healthy sleep.