The breathable and water resistant 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 cot mattresses this one piece high density pad will not discolour and is non allergic the nursery grade hygienic thermally bonded cover is fully breathable air permeable and water resistant the cover is fully removable for wa