Cotton tends to be a little wrinkled after washing and drying. You do n't necessarily have to iron the bed linen, but we recommend it because it will be softer and look neater . For ironing, it is best to use an ironing board that is as large as possible and a steam iron . With this setup you have ironed your bed linen in no time. If you only have a normal ironing board and a normal iron at hand, ironing will of course also work.