The Activity playpen mattress provides an optimal play surface for your baby thanks to its stable foam core, while also offering comfort for a little nap in between. Polycotton is a very washable and hygienic cover fabric for mattresses. Its material composition gives it good climatic and temperature-regulating properties. The cover is removable and washable up to 60°C. The mattress is tested for harmful substances and manufactured in accordance with the EU safety standard DIN EN 16890:2017.