Made to fit booristokke home this super soft cotton flat mattress protector is 100 waterproof extra absorbent and breathable longer lasting mattress our mattress protector helps keep your mattress clean and dry for longer meaning that it will last for many years to come breathable anti dust mite each protector is flat not fitted allowing the mattress to breathe from the sides and underneath whilst also providing flexibility when positioning the protector where your baby is lying