At Mulberry Park Silks, we believe the best way to get better is to ask the people you serve. So we did. We went directly to our customers and asked them a simple question: Has sleeping on a Mulberry Park Silks silk pillowcase made a difference? The answers were compelling. Pair that real-world feedback with the results of an independent laboratory friction study, and a picture emerges that's pretty hard to argue with: if you're not sleeping on a silk pillowcase, you are missing out.
The Hair Results: 78% of Customers Noticed Improvement
Nearly 8 in 10 Mulberry Park Silks customers reported noticeable hair improvement after sleeping on our silk pillowcase. This isn't a clinical study. These are real people, real pillowcases, and real mornings. And the specific improvements they described tell a detailed story:
Survey Spotlight: Silk & Hair Health
Hair concerns were the #1 reason customers purchased silk. When asked what changes they noticed after making the switch to silk, customers most frequently reported improvements related to frizz, tangles, breakage, and overall hair manageability.
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Nearly 8 in 10 customers noticed an improvement in their hair after switching to silk
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Nearly half reported fewer tangles
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More than 4 in 10 reported reduced breakage.
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78% noticed hair improvement, with reduced frizz and bedhead ranking as the top reported benefit.
Reduced Frizz and Bedhead was the #1 Reported Hair Benefit
More than half of our customers are waking up with smoother, calmer hair simply because of what they're sleeping on. For anyone with curly hair, frizzy hair, color-treated hair, or hair that's prone to breakage and split ends, that's a significant morning shift that doesn't require a single additional product.
The moisture stat also matters. A full third of respondents said their hair felt better hydrated. Cotton is an absorbent fiber that pulls moisture from whatever it touches, including your hair. Silk doesn't. Its protein-based structure keeps moisture where it belongs: in your strands.
What the Science Says About Cotton vs. Silk
Our customer feedback doesn't exist in a vacuum. It's backed by data.
In
independent laboratory testing conducted by a leading textile research institute, Mulberry Park Silks' 22 momme mulberry silk pillowcase was measured against a standard cotton pillowcase using a precision Texture Analyzer. Researchers measured friction across 80 individual test points using diverse real human hair samples — straight, wavy, curly, and coily — to ensure the results apply across all hair types.
Scientific Testing Revealed a Significant Reduction in Friction
Independent laboratory testing compared the friction generated by a luxury cotton pillowcase against a Mulberry Park Silks 22 Momme Mulberry Silk Pillowcase.
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Cotton Pillowcase Friction: 5,344 g·mm
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Mulberry Park Silks 22 Momme Pillowcase Friction: 3,529 g·mm
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Result: Mulberry Park Silks generated 34% less friction than cotton. Put another way, cotton created 51% more hair-damaging friction, increasing the potential for tangles, breakage, frizz, and moisture loss while you sleep.
Every night, the average person shifts their head 30 to 40 times. On a cotton pillowcase, every one of those movements creates resistance by dragging against hair fibers and roughing up the cuticle. This
friction contributes to mechanical damage, including breakage, tangles, split ends, and frizz. On silk, hair glides.
"We've always known that silk is a naturally low-friction material, but until now, evidence for those benefits was anecdotal," said Kendra Cosenza, Brand Manager at Mulberry Park Silks. "This independent study provides concrete, measurable proof: our 22 momme mulberry silk creates significantly less mechanical stress on hair overnight. For anyone struggling with breakage, frizz, or damaged hair, this data shows that switching to silk is more than a luxury; it’s a science-backed solution."
The Skin Results: 70% of Customers Saw Improvement
The hair numbers are compelling. But the skin results also speak volumes.
7 in 10 customers noticed an improvement in their skin. after sleeping on silk. And the single most frequently cited change? Less dryness. More than half of respondents said their skin simply felt less dry, a result that makes complete sense when you understand what a cotton pillowcase is doing to your face every night.
Silk and cotton are very different when it comes to absorption. Cotton is plant-based and pulls moisture away from skin through the night; this includes not just your natural hydration, but also serums, treatments, and moisturizers. Silk doesn't work that way. Its naturally smooth, protein-rich surface is far less absorbent, meaning your skin — and whatever you put on it — gets to do its work undisturbed.
A Clean, Friction-Free Sleep Environment
Beyond hydration, silk's smooth charmeuse weave also means less mechanical pressure on skin during sleep, reducing the friction that contributes to sleep wrinkles and skin creases over time. It's a gentler surface, night after night.
And for those with sensitive or reactive skin: every Mulberry Park Silks pillowcase is OEKO-TEX® Standard 100 certified, independently tested, and guaranteed safe from over 1,000 harmful substances and irritants. Naturally hypoallergenic, resistant to dust mites, mold, and mildew, silk creates a cleaner, calmer sleep surface from the start. This is why dermatologists and beauty professionals have been recommending silk pillowcases for years.
More Silk Pillowcase Benefits Worth Knowing About
The hair and skin results get most of the attention, and deservedly so. But silk does something else that often goes unnoticed: it meaningfully improves sleep quality.
Temperature Regulation Means Better Rest
Unlike a cotton pillowcase, silk is naturally temperature-regulating. It keeps you cool when you're warm and warm when you're cool, working with your body rather than against it. That means less tossing and turning, a more consistent sleep environment, and deeper, more restful nights. Better sleep quality isn't just a comfort story; it's a beauty and wellness story too. The less you disrupt your sleep, the more time your body has to do its overnight repair work on hair, skin, and everything else.
A Complete Beauty Sleep Routine
For those who want to take their silk sleep routine even further, a silk sleep mask pairs beautifully with a silk pillowcase. The same low-friction, moisture-retaining, hypoallergenic properties that make silk ideal for your pillowcase make a silk sleep mask a smart addition. Our silk sleep mask hydrates and blocks light gently without pulling at the delicate skin around your eyes. It's a small upgrade that makes a noticeable difference, especially for anyone dealing with fine lines, wrinkles, or sensitivity around the eye area.
You Can Afford Silk: Choosing the Right Mulberry Park Silks Pillowcase
One of the most common reasons people put off switching to silk is the assumption that it's out of reach. Not with Mulberry Park Silks. We offer three momme weights so you can find the right silk for your budget and your sleep style — all crafted from 100% Grade 6A mulberry silk with OEKO-TEX® Standard 100 certification.
19 momme — The lightest and most accessible entry point into silk. Genuinely luxurious, beautifully smooth, and a smart starting point for anyone new to silk. Also, a great option for children and teens. If a silk pillowcase is on your wish list but budget is top of mind, start here.
22 momme — Our most popular weight, and the one used in the independent friction study. The sweet spot between luxury and durability, with a tighter charmeuse weave and exceptional longevity.
30 momme — The most indulgent sleep surface we make. The thickest silk strands, the tightest weave. If you want our most luxurious silk pillowcase available, this is it.
All three weights come in a range of sizes, colors, and closures (hidden zipper or envelope). Not sure which closure is right for you? Our US-based silk experts are ready to help you find your perfect fit. Drop us a line in the chat or call us at
