This is advertised as 100% cotton sateen.  While it is 100% cotton in the shell, it is NOT sateen, it is rough and scratchy.  The fill is also 100% polyester. I purchased this specifically on the premise it was cotton sateen as I have sensitive skin and chafe easily. While it is pretty to look at, it is rough and uncomfortable on my skin, even after washing. The advertisement is misleading, and should not be advertised as a sateen fabric, because clearly, it is not.