Admittedly, I've never owned satin sheets before. Had I been fully aware of their properties, I probably would never have purchased them. Since I got 4 pillow cases and only have 2 pillows, I put 2 each on each pillow. Tough to keep them both on the pillow ... actually, I've had nights where both have slipped off. The sheets slide against each other just as easily, and promote mattress drift due to the slippage between my 15" Temporpedic foam mattress and the foundation. I just don't like them ... they are more of an aggravation to me than anything else, so as soon as I can, I'm going to replace them with just plain old cotton bed sheets and pillow cases. I'll chalk this one up to a lesson learned, that I should investigate items prior to purchasing them.