What is Satin?
Many people think satin fabrics are fabrics made from a particular type of fiber. However, the truth is that the term satin refers to the way a fabric is weaved and does not mean that the actual name of the fabric is satin. Satin fabrics are fabrics that have been woven so as to give them a glossy and shiny finish. The fabrics are weaved in such a way that the topside of the fabric is glossy while the bottom is dull. The weaving technique that results in satin fabrics is a technique that has the warp dominating. The warp is the thread running the length of the fabric while the weft is the thread running from side to side.
Satin fabrics can be made from different types of fiber such as silk, polyester, cotton, viscose, and nylon. They can also be made from a mix of fabrics. The fabric made from cotton fibers is called sateen. Fabrics made from polyester and nylon produce very shiny fabrics that some people may find unattractive. Satin made from silk is more popular because of its more natural shine.
Benefits of Satin
1. Smoother Skin
Sleeping on a cotton pillowcase can result in sleep lines on your face. This may not seem that bad because sleep lines go away, but over time sleeping on a cotton pillowcase can also result in permanent wrinkles. Cotton doesn’t allow your skin to slide on the pillow as you move, which is why you can end up with sleep lines or wrinkles. However, if you switch to sleeping on a satin pillowcase you can avoid the lines and wrinkles because the satin allows your face to slide on the pillow. 
2. Softer Skin
Cotton pillowcases can rob moisture from your face by absorbing your skin’s natural oils. As a result, your skin can become drier. Switching to a satin pillowcase can help you keep your skin soft and moisturized because satin doesn’t absorb your skin’s natural oils like cotton does. 
3. Shinier Hair
Just like cotton pillowcases absorb moisture from your skin, they also absorb moisture from your hair. This can leave you with dull, frazzled hair. Since satin won’t absorb the moisture from your hair, your hair will stay smooth and shiny when you sleep on satin pillowcases. 
Types of Satin
Antique: heavy fabric with a dull lustre. Woven with uneven slub yarns.
Baronet is a variety that has a silk appearance at the front with cotton back.
Charmeuse: Very light, comparable to silk. Highly lustrous face, dull reverse.
Crepe-back: Reversible fabric in that each side has either the satin weave or crepe weave visible.
Duchess: Heavy, stiff, low lustre satin. Holds its shape well. Dyed in solid colours.
Lucent: Shiny, high lustre, shimmering double faced sateen. Slippy surface.
Messaline: Light, soft satin. Normally made from rayon or silk. 250+ ends per inch. High lustre.
Monroe: Medium weight, sateen faced weave. Lovely drape. Tight weave holds in warmth.
Panne: Super high lustre due to heated roller pressure. Stiff finish. Normally made from silk.
Slipper: Heavy, cotton reverse.
Stretched: Same as ordinary satin fabric expect with an additional 5% spandex added.
Resources | Credits
 - https://www.contrado.co.uk/blog/what-is-satin-a-fashion-lovers-guide-to-satin-fabric/
 - https://www.utsavpedia.com/textiles/the-shimmer-of-satin/
 - http://www.typesofclothingfabrics.com/satin-fabrics.shtml
 - http://blog.treasureboxkids.com/different-types-of-satin/
 - http://beauty.allwomenstalk.com/beauty-benefits-of-sleeping-on-a-satin-pillowcase