Silk pillowcases have moved from a luxury item to a mainstream beauty and wellness recommendation. But are they worth the investment? In short: yes - silk pillowcases offer a range of benefits for hair, skin, and sleep quality.
In this blog we’re going to break down exactly how they help, especially if you wear hair extensions like our tape-in extensions, how to choose the right one, and how to integrate it into your nightly routine so you get the most value from your purchase.
What is a silk pillowcase?
Silk pillowcases are made from silk, a natural protein fiber produced by silkworms. The quality can vary, as some silks are created a little differently to others.
Silk pillowcases are distinct from satin or polyester pillowcases, which are synthetic and feel similar but lack the same natural properties.
Mulberry silk vs other silks
Mulberry silk is the most commonly recommended type for pillowcases. It's produced by Bombyx mori silkworms fed a controlled diet of mulberry leaves. This results in a smoother, stronger, and more uniform fiber.
Other silks like Tussah or Eri can be used for textiles but often have a rougher texture and less consistent quality for pillowcases.
Momme weight explained
Momme (mm) is the unit used to measure silk weight and density. Higher momme means thicker, more durable silk. Most pillowcases fall between 16 and 22 momme.
- 16-19 momme: lightweight, soft, more affordable. Ideal for those new to silk pillowcases.
- 19-22 momme: more durable and luxurious. Better for long-term use and resistance to wear.
Silk vs satin: key differences
Satin describes a weave, not a fiber. Satin pillowcases can be made from silk, polyester, or other materials. Silk satin offers natural breathability and protein structure but polyester satin does not.
If you want the natural benefits like reduced friction, breathability, and hypoallergenic properties - choose real silk (ideally mulberry silk) over synthetic satin.
Top hair benefits of silk pillowcases
Your hair moves while you sleep and during that movement, the friction between your head and pillow can cause damage. Silk reduces that friction and offers several practical advantages.
Reduced friction and less breakage
Silk's smooth surface minimises drag between your hair and the pillowcase. That means less tugging, fewer tangles, and lower risk of breakage, especially for fragile hair.
People with curly, coily, or textured hair often notice a significant difference: less frizz, fewer knots, and more defined curls in the morning.
Better moisture retention
Unlike cotton, silk does not absorb as much moisture from hair. That means your natural oils and leave-in treatments stay on your hair rather than being wicked away by the pillowcase.
This is particularly helpful if you use oil-based treatments, serums, or have naturally dry hair that benefits from retained moisture overnight.
Reduced split ends and frizz
Less friction and better moisture retention both contribute to reduced split ends and frizz. Over time, sleeping on silk can help maintain healthier looking ends and smoother strands.
That also means less frequent trimming or deep-conditioning is needed to combat breakage caused by nighttime wear-and-tear.
Ideal for hair extensions and clip-ins
If you wear wigs, tape-ins, keratin bonds, or clip-in extensions, silk pillowcases are gentler on the attachment points and the added hair - which can extend the life of your extensions.
Silk helps prevent tangling, matting and dryness, which is essential in prolonging the life of your hair extensions as they aren’t receiving natural oils from your scalp.
You should remove clip-ins before bed when possible, but when sleeping in other hair extensions, silk will reduce the damage compared to cotton.
Top skin benefits of silk pillowcases
Silk pillowcases are not just great for your hair. They can also improve your skin's health and appearance through reduced abrasion and better hydration balance.
Less sleep creases and wrinkles
Cotton pillowcases create more friction and can cause sleep lines that, with repeated pressure, may become permanent over time. Silk's slippery surface reduces the force placed on skin during sleep, minimising these creases.
This is especially beneficial for people who sleep on their sides or stomachs and are concerned about early formation of lines.
Reduced irritation for sensitive skin
Silk is naturally smooth and hypoallergenic. It is less likely to irritate sensitive or reactive skin compared to rougher, more absorbent fibers.
People with eczema often find silk less aggravating because it creates less friction and holds fewer allergens.
Better retention of skincare products
Because silk doesn't absorb as much moisture, your night creams and serums stay on your face rather than getting wiped away. That allows active ingredients to work overnight rather than being lost to your pillowcase.
For those investing in high-quality serums, this can improve both efficacy and value.
Caring for your silk pillowcase
Silk requires gentle care to preserve its natural properties. Proper washing and storage extend the benefits and life of your pillowcase.
Hand wash vs machine wash
Hand washing in cool water with a mild detergent is the safest method and will preserve momme and fabric integrity.
If you use a machine, choose a delicate cycle, cool water, and place the pillowcase in a mesh laundry bag to reduce abrasion.
Use gentle detergent and avoid bleach
Use detergent formulated for delicate fabrics or a mild baby shampoo. Avoid chlorine bleach and strong cleaners that will damage the protein fibers.
Air dry and avoid direct heat
Air drying flat or hanging away from direct sunlight is ideal. High heat from dryers can weaken silk fibers and cause shrinkage.
If you must use a dryer, use the lowest heat setting and remove while slightly damp to prevent over-drying.
Ironing and storage
Iron on a low setting if needed, preferably with a cloth barrier to avoid direct heat. Store your silk pillowcase in a breathable bag or drawer away from moisture.
Fold carefully to avoid creases. Avoid plastic storage that traps humidity and encourages mildew.
Who benefits most from a silk pillowcase?
Silk pillowcases provide broad benefits, but certain groups may see more significant improvements.
Hair extensions wearers
If you’ve invested in premium hair extensions, maintaining their smoothness and strength is essential. Sleeping with a silk pillowcase provides a frictionless surface that keeps your extensions softer, smoother and easier to manage.
People with dry or damaged hair
If your hair is dry, chemically treated, or prone to breakage, silk helps conserve moisture and reduce friction-induced damage.
You may notice smoother texture and fewer split ends over time.
Those with sensitive or reactive skin
If your skin reacts to rougher fabrics, silk's smooth surface reduces irritation and can make nights more comfortable.
It can be helpful alongside dermatologist-recommended treatments, but consult your clinician for skin conditions like eczema or rosacea.
Anyone who uses night time treatments
If you apply serums, oils, or creams at night, silk helps preserve those products on your skin instead of absorbing them into the pillowcase.
This increases product efficiency and reduces waste.
Frequent travelers and airport sleepers
Silk pillowcases pack well and can be used on travel pillows or hotel pillows to recreate a consistent sleep environment while away from home.
They offer a hygienic barrier and a familiar surface, which can improve sleep quality on the road.
Conclusion: Is a silk pillowcase worth It?
Yes. For many people, switching to a silk pillowcase is a simple, effective change that supports healthier hair, reduces skin irritation, and makes sleep more comfortable.
The benefits compound over time: less breakage, fewer sleep lines, better product retention, and a generally more pleasant sleeping surface.
Invest in quality - choose 100% mulberry silk with a suitable momme weight - and care for it properly, and your silk pillowcase can be a long-lasting part of your beauty and sleep routine.
