I was given a silk pillowcase as a present and I can honestly say it’s one of the best I ever got. (Another friend gave me a silk eyemask – I have good friends!). I was a bit dubious about ‘the science’ but unlike cotton, which absorbs moisture, these babies help your skin retain it. AND my hair is still in style the next morning, rather than the usual ‘dragged through a bush backwards’ look. As the chocolate ad articulated well, why have cotton when you can have silk? I’ll be buying one for all my gal pals this Christmas. They can be found is good homeware stores or this is where mine is from.