Buyer's Guide
Best Silk Pillowcase: How to Choose Momme, Grade and Weave
Three numbers on a label decide whether a silk pillowcase is worth its price: the momme weight, the fibre grade and the weave. Here is how to read them, and what Sensoire prints on its own.
The best silk pillowcase is made from 100% mulberry silk, states its momme weight, backs the words Grade 6A with other details you can check, and uses a charmeuse weave on the side you sleep on. For everyday use, 19 or 22 momme is the range to look at. Beyond that, the difference between a good pillowcase and a disappointing one comes down to construction: the seams, the closure, and whether the label tells you what the fabric actually is. This guide takes those checks in order.
What Makes the Best Silk Pillowcase?
The best silk pillowcase states four things on its label: 100% mulberry silk, a momme weight of 19 or 22, a fibre grade of 6A and a charmeuse weave. Those four checks matter more than the brand or the price, because together they describe the fibre, how much of it there is and the surface your face will touch.
Mulberry silk is the filament spun by the Bombyx mori silkworm, raised on mulberry leaves. Those filaments are long, fine and even, which is why fabric woven from them feels smooth rather than slubby. That smoothness is the whole point of a silk pillowcase: less drag against skin and hair overnight, a surface that stays cool to the touch, and a tightly woven face that takes up less from your skin and hair than a cotton weave does.
Air moves between the filaments too, so the fabric feels breathable rather than clammy, and a well made case keeps its hand and its sheen through years of washing.
None of that comes with the word silk on a listing. The label has to say what the fabric is, how much of it there is, and how it was woven. Six things to look for before you buy:
- 01Fibre100% mulberry silk, or at minimum 100% silk, printed on the care label and repeated on the product page.
- 02WeightA momme number, stated plainly. Nineteen or 22 momme for an everyday pillowcase.
- 03Grade6A on the raw silk, backed by the other five items on this list rather than standing alone.
- 04WeaveCharmeuse, or satin weave, on the sleeping side.
- 05ConstructionEven seams and a closure that suits your pillow. No zip against your face.
- 06CareWashing instructions you can actually follow at home.
Left, mulberry silk cocoons before reeling. Right, the woven result: an even, fluid surface with a soft sheen rather than a hard shine.
Silk vs Satin Pillowcase: Fibre or Weave?
Silk is a fibre. Satin is a weave. A satin pillowcase can be woven from silk, polyester, nylon or a blend, and under shop lighting they all shine. In the comparison below, a 100% silk fabric and a satin fabric sit side by side under the same light. Both reflect it. Shine on its own cannot tell you which is which.
100% silk and satin under the same light. Only the label separates them.
If a listing says satin and nothing else, treat the fibre as unknown. Polyester satin is inexpensive and it does feel slippery, but it is a different material with a different relationship to heat and moisture. Look for a composition line, 100% silk or 100% mulberry silk, rather than a photograph, a glossy finish or the word silky.
For the longer version, read our guides to how to tell silk from satin and silk vs satin pillowcases for hair and skin.
How to Choose the Best Momme for a Silk Pillowcase
Momme is the traditional weight unit for silk fabric. One momme is about 4.34 grams per square metre, so a 19 momme pillowcase carries roughly 82 g/m² of silk and a 22 momme pillowcase about 95 g/m². More silk per square metre means a denser, more opaque fabric with more body in the hand. It does not mean softer, and it does not mean a higher fibre grade.
The same blush silk at six weights, from 12 to 30 momme. Density and opacity climb with the number.
| Momme | Feels like | Trade-off | Best for |
|---|---|---|---|
| 19 momme | Light, fluid, cool against the skin | Thinner, a little less lustre, less tolerant of rough handling | Warm rooms, summer, anyone who prefers a lighter case |
| 22 momme | Balanced weight, fuller drape, deeper sheen | Costs more than 19 for the extra silk | Everyday use through the year |
| 25 and above | Dense, substantial, heavy in the hand | Heavier and pricier; some people find it too much | Those who want the most opaque, weighty fabric, often for winter |
Sensoire weaves its pillowcases at 19 and 22 momme. Choose 19 for a lighter feel, 22 if you like a little more substance under your cheek. Neither is the higher quality one; they are two weights of the same Grade 6A silk. Our momme guide walks through the full scale, from 16 to 25 momme, if you want to go deeper.
What Is Grade 6A Mulberry Silk?
Grade describes the raw silk before it is woven. Long, clean, unbroken filaments with few impurities earn the top grade, 6A, on the commercial scale used by silk mills. Shorter or less even filaments grade lower. It is a fibre measure, not a fabric one, and it says nothing about how thick or heavy the finished cloth is.
Put simply: 6A is fibre quality, momme is fabric weight. A light 16 momme scarf can be Grade 6A. A heavy 30 momme fabric can be woven from lower grade fibre, and will show it as an uneven surface that pills sooner.
One caution. No independent body certifies 6A on a finished pillowcase; it is the mill's grading, passed on by the brand. Read it alongside the rest of the label. A product that states its fibre, its momme, its certification and its care instructions has given you enough to trust the grade. One that prints 6A and nothing else has not.
Even filament, even surface. Grade shows in the way light moves across the folds.
Why Charmeuse Weave Matters for a Silk Pillowcase
The weave decides the surface that touches your face. Charmeuse is a satin weave: the warp threads float over several weft threads before dipping under, which leaves one side smooth and lightly lustrous and the reverse more matte. It is the finish most people picture when they think of a silk pillowcase, and it is the one that lets hair move across the fabric with the least catching.
Weave and fibre remain separate facts. Charmeuse can be woven from silk or from polyester. If you want silk charmeuse, the listing needs to say both.
Left, the float structure of a satin weave. Right, the seam: the part of a pillowcase most likely to fail first.
Seams and Closures
Beautiful fabric is wasted on a case that twists at the seams or lets the pillow slide out. Turn a new pillowcase inside out and look at the corners. Dense, even stitching with the raw edges enclosed is what you want to see.
The closure is a matter of pillow and preference. An envelope closure folds an inner flap over the opening, so there is no hardware near your face and nothing to snag in the wash. An Oxford flange adds a flat border around the case with the same hidden flap behind it. Ribbon ties make the closure part of how the bed looks. A zip holds a pillow firmly, but it is a metal or plastic part stitched into a light fabric, and it is where many silk pillowcases eventually give out. Sensoire does not use zips on any of its silk pillowcases.
If durability is what you are weighing, how long a silk pillowcase lasts sets out what fails first, and in what order.
Choose the Best Silk Pillowcase for Your Needs
Match the pillowcase to the problem you want to solve rather than to the highest number on the label. The four checks above are the same for everyone; the right momme, closure and size depend on your hair, how warm you sleep and how you wash. The short guide below pairs each need with the specification that answers it.
For Fine, Long or Tangled Hair
Friction is the mechanism. When hair rubs against fabric through the night it tangles, lifts at the cuticle and frizzes. In laboratory friction tests published by TRI Princeton in 2023, silk registered the lowest friction against hair of the fabrics measured, while velvet, at the other end of the scale, produced 37.4% more friction than cotton. A smooth case does not repair damaged hair. It gives hair less to catch on.
Silk also takes up less moisture from hair than cotton does, so hair that was smooth at bedtime has a better chance of looking that way in the morning. If your hair is long and heavy, choose 22 momme; the extra body keeps the case sitting flat. Our silk pillowcase for hair guide covers what it helps with and what it cannot do.
For Curly Hair and Protective Styles
A pillowcase alone will not hold a wash-and-go or a set of braids in place. Many people pair it with a silk bonnet or scarf. The bonnet keeps the style contained; the pillowcase gives face and hair a smooth surface if the bonnet shifts during the night. Between them they cover more of the night than either does alone.
Pillowcase, sleep mask and scrunchie in the same 100% mulberry silk.
For Hot Sleepers
Silk sits close to the skin without trapping heat against it. The fibre absorbs and releases moisture readily, and the fabric feels cool on first contact without turning cold later in the night, which is the usual complaint about synthetics. In winter the same surface feels neutral rather than icy. Choose 19 momme for the lightest, airiest version of this, or 22 momme for the same coolness with more drape. Our guide to silk sheets for hot sleepers takes the whole bed into account, and why silk regulates temperature explains the mechanism. For the pillowcase on its own, see what a silk pillowcase for hot sleepers can and cannot change.
For Sensitive Skin
A smooth charmeuse face means less drag across the cheek and less rubbing at the jaw, which many people with reactive or dry skin find more comfortable than cotton percale. Silk is not a skincare product and will not clear breakouts or smooth lines. What it offers is a gentler surface, and a fabric that has been tested for harmful substances under OEKO-TEX Standard 100. Keep the case clean and it stays that way.
How to Tell If a Silk Pillowcase Is Real
Start with the label, not with a lighter. EU and UK textile rules require the fibre composition to be shown on the product, so 100% silk or 100% mulberry silk on the care label is the first and most reliable check. A listing that leans on words like silky, silk-feel or satin, and never names the fibre, is telling you something.
Three checks you can make without damaging the case:
- 01Hand feelReal silk feels soft and fine with a little natural stretch, and warms to your hand within seconds. Synthetic satin stays cool for longer and feels unusually slippery.
- 02SheenSilk reflects light softly and in several directions, a little like a pearl. Polyester satin has a flatter, brighter, more uniform gloss.
- 03Composition lineThe printed fibre content on the care label, matched against the product page. If they disagree, ask the seller to confirm in writing before you pay.
You will also see advice to burn a thread, dip fibres in hot water or shake the case for powder. Those tests come from the world of silk-filled duvets, where there is loose fibre to examine. On a woven pillowcase they mean damaging it, and on their own they are not conclusive. Our guide to how to tell if silk is real explains which checks work, and why the burn test belongs in a laboratory rather than a kitchen.
Champagne and blush pillowcases in 22 momme silk. The label, not the shine, is what to read first.
Sensoire Mulberry Silk Pillowcases at a Glance
Every Sensoire pillowcase states the four checks from this guide on its product page. Here they are in one place.
| Criteria | Sensoire | What to check |
|---|---|---|
| Fibre | 100% mulberry silk, Grade 6A on the pure silk styles | Read the composition on the label first |
| Momme | 19 or 22 momme, stated on every product page | 19 for a lighter feel, 22 for more substance |
| Weave | Charmeuse face on the sleeping side | The satin weave gives the smooth surface; the fibre gives everything else |
| Certification | OEKO-TEX Standard 100 | The fabric has been tested for harmful substances |
| Closures | Envelope, Oxford flange or silk ribbon ties. No zips | Pick the finish that suits your pillow and your bed |
| Sizes | Up to nine sizes, 40 x 40 cm to 80 x 80 cm, depending on the style | Match the case to the insert for a neat fit Read the size guide |
Blush and ivory in the same weave. Colour is the last decision, not the first.
How to Wash and Care for a Silk Pillowcase
Sensoire recommends hand washing. It takes a few minutes, and it is the gentlest thing you can do for a protein fibre.
- 01WashFill a basin with cool or lukewarm water, below 30°C, and dissolve a detergent made for silk. Skip anything with enzymes or bleach. Soak for five to ten minutes and press the fabric gently through the water. For marks, work a drop of detergent in with your fingertips rather than rubbing.
- 02RinseRinse in clean water until it runs clear. Squeeze the water out by pressing, never by twisting or wringing.
- 03DryLay the case flat on a drying rack, out of direct sunlight and away from radiators. No tumble dryer, and keep it clear of jewellery, zips and anything sharp.
- 04StoreFold it and store it flat, out of the light, and never with unwashed clothes. Air it on a dry day now and then. If you use moth protection, keep it from touching the silk.
Cool water, a silk detergent, and hands rather than a drum.
The full method, including how often to wash each silk item, is in our guide to how to wash silk pillowcases and bedding.
Silk Pillowcase FAQs
What is the best silk pillowcase?
Not the heaviest one. The best silk pillowcase states four things clearly: 100% mulberry silk, the momme weight, the fibre grade and the weave. For most people, 22 momme silk with a charmeuse face is the everyday choice, and 19 momme suits anyone who prefers a lighter, cooler case.
Are silk pillowcases good for skin?
A silk pillowcase has a smooth surface, so it drags less across your face while you sleep, and many people with dry or sensitive skin find that more comfortable. It does not treat acne, wrinkles or any other skin concern. Keep the case clean and follow your usual skincare routine.
Do silk pillowcases help with acne?
Silk itself does not clear acne. What a clean silk pillowcase offers is a smoother, less absorbent surface than cotton, so less residue from skincare and hair products sits against your face overnight. Wash it regularly and treat it as a comfort choice, not a skincare step.
Do silk pillowcases help with hair?
They reduce the friction between hair and fabric, which for many people means fewer morning tangles, less frizz and less flattening. Laboratory friction tests published by TRI Princeton in 2023 measured silk as the smoothest of the fabrics tested against hair. A silk pillowcase will not stop hair loss or repair damaged hair.
Which is better, a silk or satin pillowcase?
Silk is a natural fibre. Satin is a weave that can be made from silk, polyester, nylon or other fibres. If you want real silk, check the label for 100% silk or 100% mulberry silk rather than relying on the word satin or a glossy photograph.
What momme is best for a silk pillowcase?
For everyday use, 19 to 22 momme. Nineteen momme is lighter and cooler. Twenty-two momme has more body and a deeper sheen, and is the more common choice for nightly use. Heavier weights such as 25 momme feel denser and cost more without being higher in fibre quality.
How do you wash a silk pillowcase?
Hand wash in cool or lukewarm water below 30°C with a mild detergent made for silk. Do not twist or wring the fabric. Press out the water, then dry flat in the shade. Avoid bleach, enzyme detergents, tumble drying and direct sunlight.
Are silk pillowcases worth it?
For anyone who sleeps hot, has long or textured hair, or simply wants a smoother surface against their face, a well made silk pillowcase earns its price over cotton. That price is only worth paying when the listing states the fibre, the momme and the certification, which is what separates a silk pillowcase from a satin one.
Read our full answer: Is a silk pillowcase worth it?
Momme, grade, weave. Read those three off the label, check the seams and the closure, and the rest is a matter of colour.
Sensoire Silk Pillowcases
19 or 22 Momme · Envelope
100% Pure Mulberry Silk Pillowcase
The everyday case, in either weight. A hidden envelope flap keeps the pillow tucked with no hardware near your face.
- 100% Grade 6A mulberry silk
- 19 or 22 momme, envelope closure
- OEKO-TEX Standard 100
22 Momme · Piped
22 Momme Silk Pillowcase with Piping
The heavier weight with a piped edge, which gives the seam a defined finish and a charmeuse face on the sleeping side.
- 100% Grade 6A mulberry silk
- 22 momme, envelope closure
- OEKO-TEX Standard 100
22 Momme · Oxford
Pure Silk Pillowcase with Oxford Flange
A flat contrast border around the case, with the envelope closure hidden behind it and nothing to catch.
- 100% Grade 6A mulberry silk
- 22 momme, contrast Oxford flange
- OEKO-TEX Standard 100
19 or 22 Momme · Ties
Silk Pillowcase with Tie Closure
Silk ribbon ties instead of a hidden flap, for when the closure should be part of how the bed looks.
- 100% Grade 6A mulberry silk
- 19 or 22 momme, no zip
- Nine sizes, 40 x 40 to 80 x 80 cm
Editorial Sources
- The Fabric Factor: The Role of Your Pillowcase and Hair Accessories in Hair Care. Kang X, Malinauskyte E, Gabarra M. TRI Princeton, December 2023.
- OEKO-TEX Standard 100: scope of the harmful-substance testing behind the certification.
- Charmeuse, Wikipedia: the structure of the satin weave used for most silk pillowcases.