Silk vs. Cotton Pillowcases: An Honest Guide

You spend about a third of your life with your face on a pillowcase, so it's fair to wonder whether the fabric matters. Silk has a loyal following and a lot of marketing behind it. Here is our straight answer.

What silk really does differently

• It's smoother. Silk is a long, continuous fiber with a slick surface. Your hair and cheek slide on it instead of catching. This is the part almost everyone notices the first night.
• It feels cool to the touch. Silk is thin and breathable, and it feels cool when you turn onto a fresh side. The CDC and NIH both recommend a cool bedroom, and some people find a cool pillow helps them get comfortable.
• It absorbs less than cotton. Cotton is thirsty. That's great for towels, less so if you put on night cream or hair oil and would rather it stayed on you.

What the evidence doesn't show

You'll see claims that silk prevents wrinkles, acne or hair loss. We looked. Independent research on silk pillowcases specifically is thin, and most of the numbers you see online come from tests run by the brands selling them. Dermatologists quoted in the press tend to say the same thing: less friction is a reasonable idea, but it's not a treatment.

So we won't promise you better skin. What we can promise is a smoother, cooler surface that many people simply like sleeping on, especially if they have long, curly or color-treated hair that tangles easily.

Silk or cotton: a quick way to decide

• Choose silk if you wake with tangled hair or sleep creases, sleep hot, or use night skincare.
• Stick with cotton if you want to machine wash hot every few days without thinking about it, or you prefer a matte, grippy feel.
• Do both. Plenty of people keep silk on their own pillow and cotton for the guest room.

What to look for

• Mulberry silk. It's the most common type for bedding, known for long, even fibers.
• The same fabric on both sides. Cheaper cases are silk on top and polyester underneath, which can slip off the pillow.
• Satin is not silk. "Satin" is a weave, usually polyester. It's smooth but doesn't breathe the same way.

How to make it last

• Wash cool by hand, or on a delicate cycle in a mesh bag, with a little mild detergent.
• Skip bleach and fabric softener.
• Air dry out of direct sun, and iron on low from the back if needed.
• Wash every week or so, like any pillowcase.

From the Celliden shelf

Our Mulberry Silk Pillowcase is pure mulberry silk with a subtle tone-on-tone woven jacquard pattern, in silver gray and pearl ivory, and fits a standard pillow. It pairs with our Mulberry Silk Sleep Mask, so the fabric against your face is the same from cheek to lashes. For the rest of the room, see Cool, Dark, Quiet.

Sources

• CDC: About Sleep
• NHLBI, NIH: Healthy Sleep Habits
• The Healthy: Do Silk Pillowcases Have Real Benefits? What Dermatologists Think

This article is general information, not medical or dermatological advice. For ongoing skin or hair concerns, see a dermatologist.