The breathable and water resistant 5cm thick super fibre crib safety mattress is made from environmentally friendly and fully recyclable fibre material which offers superb comfort and support for your baby unlike foam which is still being used in the manufacture of baby crib mattresses this one piece high density pad will not discolour and is non allergic the hygienic pinsonic quilted cover is breathable air permeable and moisture resistant the cover is zipped to be fully removable for wash