Yes. Compared to a cotton pillowcase, satin is softer and therefore won’t tug at your skin or hair. This can help prevent the formation of wrinkles or reduce breakage and frizz. Plus, a satin pillowcase can easily be thrown in the wash with the rest of your laundry (unlike silk which requires more careful care).
Dogs sweat through their foot pads to help keep them cool.
They also keep cool by panting.