Celebrities use them. Instagrammers love them. Hairdressers recommend them. Silk pillowcases are not new, but over the past couple of years, they seem to have exploded in popularity. They have been embraced by the beauty and wellness industries and often credited with delivering smooth, shiny hair and wrinkle-free, supple skin.

Mulberry silk is often regarded as the highest quality silk you can purchase. That's largely because the silk worms are nurtured in a way that creates a textile that's nourishing to humans. These silk worms are only fed mulberry leaves. Mulberry leaves are rich in nutrients and protein, so the result is a thread that is long, continuous, and contains amino acids and proteins that can nourish both our hair and skin It is also the most expensive type of silk.

If you feel guilty about how your shopping habit is impacting the environment, remember this: Silk is considered a relatively sustainable fabric because it uses silk worms, a renewable, biodegradable resource. And manufacturing it utilizes less water than your garden variety synthetics.

Thanks to silk's super smooth texture, hair glides over it without any friction which means you'll be less likely to wake up with frizzy hair, tangles, or bedhead, whereas cotton can snag hair and mess it up into a nest of tangles by the morning. Cotton is more porous than silk, so traditional pillowcases absorb moisture from your hair, while silk leaves that hydration exactly where it belongs: in your hair. This means if you suffer from dry strands or a flaky scalp, a silk pillowcase will be a godsend.

Yes, yes, yes.. The tightly-woven, smooth fibers of silk help keep moisture close to the skin. When you wake up after sleeping on a silk pillowcase, your face will be better hydrated than if you slept on cotton. This is a great beauty tip for those with dry, flaky skin. As a bonus, hydrated, plump skin cells show fewer fine lines & wrinkles!

Silk fabrics are antibacterial and hypoallergenic, which means there are less harmful bacteria, which is great if you have sensitive skin or acne-prone.