Mend Satin Gray - Satin pillow case. No matter what position you sleep in, you spend hours touching your pillow with your hair or face every night. It turns out that all this friction can be the cause of wrinkles, which over time will turn into wrinkles. Fortunately, satin pillowcases exist to provide you with the beauty of your sleep. Satin pillowcases create a smooth surface so that your hair and skin can glide - with less friction there will be fewer creases on your skin and less blooming in your hair. Satin also has a cooling property and is so luxurious to lie on it.