High-end preschooler's mattress, designed for children ages 2-8 years old, provides over flat, restful, breathable sleep for your baby. Let your baby sleep peacefully and safely. We use patented structure integrated molding production, does not contain any glue or chemicals. Made from Dupont Sorona, a sustainable fiber, Sorona is Oeko-Tex 100 Class 1 certified and made from 37% plant-based ingredients that are kinder to the environment and softer on the skin.