The roba playpen mattress is designed for long and skin-friendly lying for the little ones. The soft PU foam core offers excellent lying and sitting comfort. The quilted and cozy cover is removable and washable thanks to the 3-sided zipper. With roba products, children can explore their world and experience many beautiful moments together with their parents and playmates. The lying surface and the underside are made of 65% polyester and 35% cotton.