These sheets are high quality 100% cotton. I am not a fan of microfiber and I am semiinvalid so I spend most of my time in bed. I neededa sheet that was easy to change and the pockets are deep enough that they fit on corners easily and they stay on, due to the design of pockets, they do not keep popping off. I would recommend them to everyone, I am 74 so I know a little bit.