There seems to be varying reviews regarding these sheets. I bought the gray in king, and the white in queen. Both top (flat) sheets are silky smooth on both sides as you would expect from sheets called "Sateen." The fitted (bottom) sheets are silky smooth on the side that you will be laying on, the side touching the mattress feels more like cotton than sateen. The pillow cases are all silky on the outside (which your head will be touching). For the price, I think these are fantastic sheets. The colors are true to the picture as well. I would definitely recommend them.