Using these satin pillowcases is a breeze. Just slip them onto your pillows and enjoy the smooth, luxurious feel as you sleep. Remember, since they're made of 100% polyester solid satin, they're very gentle on your skin and hair. As for care, you can simply toss them in the washing machine. But don't use super hot water or harsh detergents, as that might damage the fabric. Also, avoid using fabric softeners, as they can reduce the smoothness of the satin. After washing, let them air - dry for the best results. This will keep your pillowcases looking and feeling great for a long time.