Silk Sleep

Mulberry Silk Pillowcase

Name: Mulberry Silk Pillowcase
Brand: Soielle
SKU: 1001
Price: 29.99 GBP
Availability: InStock

Written and reviewed by the Soielle team. We research the sleep-beauty essentials and devices we sell and keep every product detail factual and current. Last updated August 2026.

4.7 · 3 reviews

£29.99

£39.99

Save 25%

The pillowcase your skin and hair spend a third of their life on. Woven from long-strand mulberry silk, it creates far less friction than cotton, so you wake with fewer sleep creases and less bed-head frizz. Silk also holds onto less moisture than cotton, which means the products you apply at night stay on your skin rather than soaking into your pillow.

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1 Piece

£29.99

£39.99

Why you'll love the Mulberry Silk Pillowcase

Less drag on hair overnight, which is where the frizz comes from

cotton grips. Roll over on it a few hundred times a night and it lifts the cuticle, roughs up the ends and undoes whatever you did to your hair before bed. A smooth surface lets hair slide instead of catching, so a blow-dry holds a second day and curls keep their pattern instead of arriving at breakfast as a halo. The Sleep Foundation puts the mechanism plainly: the smooth material lets hair and skin glide across the pillowcase without friction or tugging.

Envelope closure, so there is nothing hard near your face

the closure is a real decision in this category, not a detail. A zip holds the pillow tighter through a wash cycle, and some reviewers prefer that. What it also does is put a plastic or metal track a few inches from your cheek and your hair all night, which is the one place on a pillowcase you do not want something that can press a line into skin or catch a strand. The envelope fold has nothing in it to catch. The trade is that a very full pillow can work its way loose over a week, so give the flap a good tuck.

£29.99, a penny under the department stores and less than half the specialists

live UK prices, 4 August 2026. Amazon multipacks run £9.99 to £19.99. Jasmine Silk sits at £16.99, The Range at £27.99. The department-store band is tight: M&S £30, Dunelm's Dorma £30, Debenhams £32.50, John Lewis £45 for the standard and £50 for the Oxford. Above that the specialists start at £49.99 and reach £70 at The White Company and £130 at Harrods. £29.99 puts this inside the department-store band with free UK delivery and 30 days to change your mind.

Four colourways in the standard UK size, so it fits the pillow you own

ivory, blush, champagne and slate, cut to 50 × 75cm, which is the standard UK pillow. Worth saying because the listings are a mess: some sellers label 50 × 75cm as king size, which in the UK it is not. A UK king pillow is 50 × 90cm and this will not fit one.

What a silk pillowcase does, what it does not, and what the downsides actually are

Two of the six questions Google shows people asking about silk pillowcases are some version of what is the downside. Almost nobody selling one answers that, so here is the honest version before the sales pitch.

What it does is reduce friction. That is the whole mechanism and it is enough. Less drag means less mechanical roughing of the hair cuticle overnight and less of the fabric-print creasing you can wake up with after sleeping face-down on cotton. Silk also absorbs less than cotton does, so a night cream or a hair oil is more likely to still be on you in the morning rather than in the wash. Those effects are modest, real, and they compound over months rather than showing up on night one.

What it does not do is prevent ageing. The category leans hard on that and the evidence does not support it. Sleep creases are pressure lines that fade over the day; the fine lines that stay are driven by sun exposure, genetics and time, and no pillowcase touches any of the three. If you sleep on your back you will get less benefit than a side sleeper does, simply because less of your face is against the fabric. A pillowcase is not skincare and it is not a treatment.

The real downsides, in order of how likely they are to annoy you. It costs several times what a cotton pillowcase costs. It needs a cool, gentle wash and no tumble dryer, which is a small permanent chore. It is slippery, so a loosely stuffed pillow can slide around inside it and the whole thing can slide off a sloped headboard. It shows water marks if you go to bed with wet hair or a very wet serum on. And it will not survive a hot wash or a biological detergent, for the reason in the care notes below.

One more, because it is the one that costs people money. Satin is a weave, not a fibre, and a satin-weave pillowcase can be woven from silk or from polyester. Both feel smooth in the shop, both are sold under smooth-sounding names, and the price gap between them is large. The word on the front of a listing does not settle it, so read the fibre line rather than the product name. For this one: the label is 100% long-strand mulberry silk on the face, and the fabric carries OEKO-TEX certification per our supplier's documentation. We do not publish a momme weight or a silk grade for it, because we do not hold an independent test for either, and we would rather leave a gap than fill it with a number we cannot stand behind.

How to use the Mulberry Silk Pillowcase

1
Put the silk face up. It is the side that touches you, and on a single-sided pillowcase the underside is usually a plainer weave that stays put on the bed better anyway.
2
Tuck the envelope flap properly. Push the pillow all the way in, then fold the flap back over the end rather than leaving it sitting at the opening. That is the difference between it staying put for a week and working loose in two nights.
3
Go to bed with hair dry, or close to it. Wet hair is at its most fragile and it will leave a damp patch that dries to a visible mark on silk.
4
If you use overnight skincare, give it a few minutes to sink in before you lie down. Silk absorbs less than cotton, which is the point, but a fresh layer of oil straight onto the fabric will still transfer.
5
Side sleepers get the most out of it, and back sleepers the least. If you are a side sleeper and you are trying to protect one particular set of curls or a blow-dry, a bonnet covers the whole head rather than just the contact patch.
6
Rotate two if you can. Silk wants a gentle wash, and having a second one means the first is never sitting in the basket while you sleep on cotton.

Care and safety

Machine wash cool on a delicate cycle, inside a mesh laundry bag. The bag matters more than people expect: it stops the fabric being dragged against zips and buttons, which is what causes pulls.
Use a pH-neutral or dedicated silk detergent, and specifically not a biological one. Biological detergents work through protein-digesting enzymes and silk is a protein fibre, so a biological wash slowly eats what you paid for.
No bleach, no fabric softener, no tumble dryer. Softener coats the fibre and takes away the exact smoothness you bought it for, and heat is what turns silk brittle and dull.
Air dry away from direct sunlight and off the radiator. Sun fades the dye and heat is the fastest way to age the fabric.
Cool iron on the reverse if you want it crisp, while it is still slightly damp. Wash it about once a week, in line with the rest of your bedding, and sooner if you use heavy overnight products.

Mulberry Silk Pillowcase: frequently asked questions

Is it worth getting a silk pillowcase?: It depends on which claim you are buying. If you want less overnight friction on your hair, it is a straightforward yes and the effect is noticeable within about a week: a blow-dry holds longer, curls keep more of their pattern and there is less morning frizz to fix. If you want fewer sleep creases in the morning, it helps and it helps most if you sleep on your side or front. If you are buying it to prevent wrinkles, it is not worth it, because the fine lines that persist are driven by sun exposure, genetics and time rather than by what your face rests on. The honest summary is that it is a good, low-effort upgrade to how your hair and skin start the day, and it is not skincare.
What are the disadvantages of a silk pillowcase?: There are five worth knowing before you buy. It costs several times what cotton costs. It needs a cool, gentle wash with a non-biological detergent and no tumble dryer, which is a permanent small chore rather than a one-off. It is slippery, so a loosely filled pillow can shift inside it and the whole pillow can slide off a sloped headboard. It marks if you go to bed with wet hair or heavy oils, and those marks are visible until the next wash. And the fibre content is genuinely hard to verify from a listing, because satin is a weave rather than a fibre, so a satin-weave pillowcase can be silk or polyester and the product name will not tell you which. Read the fibre line, not the title.
Does a silk pillowcase help with frizzy hair?: Yes, and this is the benefit with the clearest mechanism behind it. Frizz is largely a cuticle problem: when the outer layer of the hair shaft is roughed up, strands stop lying flat against each other and start standing away. Cotton has a comparatively high-friction surface and a night of turning over drags hair across it repeatedly. A smooth surface lets the hair slide instead of catching, so less of that roughing happens in the first place. The Sleep Foundation describes the same mechanism: the smooth material lets hair and skin glide across the pillowcase without any uncomfortable friction or tugging. It will not fix frizz caused by damage, humidity or dryness, so it works alongside a conditioner and a leave-in rather than in place of them.
How do you wash a silk pillowcase without ruining it?: Cool water, delicate cycle, mesh laundry bag, pH-neutral or dedicated silk detergent, then air dry out of direct sunlight. The single most common way people ruin one is not heat but detergent: biological detergents clean using protein-digesting enzymes, and silk is a protein fibre, so a biological wash gradually degrades the fabric even at a low temperature. After that it is heat, which makes silk brittle and dull, so no tumble dryer and no radiator. Skip fabric softener too, because it coats the fibre and dulls the smoothness that is the entire reason to own it. If you want it crisp, iron cool on the reverse while it is still slightly damp.
Is an envelope closure better than a zip?: They fail in different ways, so it is a preference rather than a ranking. A zip holds the pillow more securely, particularly through a wash, which is why some reviewers prefer it. The cost is that you have a plastic or metal track sitting a few inches from your face and your hair for eight hours, and that is exactly the part of a pillowcase where something rigid can press a line into skin or snag a strand. An envelope closure has nothing hard in it, so there is nothing to catch on, and it is quicker to get on and off. Its weakness is that a very full pillow can gradually work the flap loose, which is fixed by pushing the pillow fully in and folding the flap back over the end rather than leaving it at the opening. This one is an envelope closure.
What size is it, and will it fit my pillow?: It is 50 × 75cm, which is the standard UK pillow size, also sold as housewife size. That is the pillow most UK beds come with, so for most people it fits without thinking about it. Check before you order if your pillows came with a king-size bed set, because a UK king pillow is 50 × 90cm and this will be too short for one. Worth flagging that listings in this category are inconsistent: some sellers describe 50 × 75cm as king size, which is not the UK convention, so go by the centimetres rather than the word. If your pillow is a deep or memory-foam type at the standard footprint, it will still fit, though the envelope flap will sit tighter.

Learn more: If it is specifically your hair you are protecting, a bonnet covers all of it

Sources: Sleep Foundation: Best silk pillowcases

Mulberry Silk Pillowcase

£29.99

Customer reviews

4.7

Based on 3 reviews

Hair genuinely less frizzy

Bought one to see what the fuss was about. Two weeks in and my blow-dry survives the night. Cool against the skin too, which I didn't expect to care about but do.

Lovely quality for the price

Feels far more expensive than it is. The envelope closure keeps the pillow in place and it washes well on the delicate cycle in the laundry bag.

Get the darker colour

Beautiful to sleep on. Only note is the ivory shows skincare marks quicker than my slate one, so wash day comes around sooner.

Dispatched within 1–2 business days of your order.
Free shipping on all UK orders: estimated delivery 7–10 business days.
Easy 30-day returns and a 30-day satisfaction guarantee on all purchases.
24-hour cancellation window after placing your order.
Defective or damaged items are replaced at no cost to you.

Why you'll love the Mulberry Silk Pillowcase

Less drag on hair overnight, which is where the frizz comes from

Envelope closure, so there is nothing hard near your face

£29.99, a penny under the department stores and less than half the specialists

Four colourways in the standard UK size, so it fits the pillow you own

What a silk pillowcase does, what it does not, and what the downsides actually are

How to use the Mulberry Silk Pillowcase

Put the silk face up. It is the side that touches you, and on a single-sided pillowcase the underside is usually a plainer weave that stays put on the bed better anyway.

Tuck the envelope flap properly. Push the pillow all the way in, then fold the flap back over the end rather than leaving it sitting at the opening. That is the difference between it staying put for a week and working loose in two nights.

Go to bed with hair dry, or close to it. Wet hair is at its most fragile and it will leave a damp patch that dries to a visible mark on silk.

If you use overnight skincare, give it a few minutes to sink in before you lie down. Silk absorbs less than cotton, which is the point, but a fresh layer of oil straight onto the fabric will still transfer.

Side sleepers get the most out of it, and back sleepers the least. If you are a side sleeper and you are trying to protect one particular set of curls or a blow-dry, a bonnet covers the whole head rather than just the contact patch.

Rotate two if you can. Silk wants a gentle wash, and having a second one means the first is never sitting in the basket while you sleep on cotton.

Mulberry Silk Pillowcase: frequently asked questions

Is it worth getting a silk pillowcase?

It depends on which claim you are buying. If you want less overnight friction on your hair, it is a straightforward yes and the effect is noticeable within about a week: a blow-dry holds longer, curls keep more of their pattern and there is less morning frizz to fix. If you want fewer sleep creases in the morning, it helps and it helps most if you sleep on your side or front. If you are buying it to prevent wrinkles, it is not worth it, because the fine lines that persist are driven by sun exposure, genetics and time rather than by what your face rests on. The honest summary is that it is a good, low-effort upgrade to how your hair and skin start the day, and it is not skincare.

What are the disadvantages of a silk pillowcase?

There are five worth knowing before you buy. It costs several times what cotton costs. It needs a cool, gentle wash with a non-biological detergent and no tumble dryer, which is a permanent small chore rather than a one-off. It is slippery, so a loosely filled pillow can shift inside it and the whole pillow can slide off a sloped headboard. It marks if you go to bed with wet hair or heavy oils, and those marks are visible until the next wash. And the fibre content is genuinely hard to verify from a listing, because satin is a weave rather than a fibre, so a satin-weave pillowcase can be silk or polyester and the product name will not tell you which. Read the fibre line, not the title.

Does a silk pillowcase help with frizzy hair?

Yes, and this is the benefit with the clearest mechanism behind it. Frizz is largely a cuticle problem: when the outer layer of the hair shaft is roughed up, strands stop lying flat against each other and start standing away. Cotton has a comparatively high-friction surface and a night of turning over drags hair across it repeatedly. A smooth surface lets the hair slide instead of catching, so less of that roughing happens in the first place. The Sleep Foundation describes the same mechanism: the smooth material lets hair and skin glide across the pillowcase without any uncomfortable friction or tugging. It will not fix frizz caused by damage, humidity or dryness, so it works alongside a conditioner and a leave-in rather than in place of them.

How do you wash a silk pillowcase without ruining it?

Cool water, delicate cycle, mesh laundry bag, pH-neutral or dedicated silk detergent, then air dry out of direct sunlight. The single most common way people ruin one is not heat but detergent: biological detergents clean using protein-digesting enzymes, and silk is a protein fibre, so a biological wash gradually degrades the fabric even at a low temperature. After that it is heat, which makes silk brittle and dull, so no tumble dryer and no radiator. Skip fabric softener too, because it coats the fibre and dulls the smoothness that is the entire reason to own it. If you want it crisp, iron cool on the reverse while it is still slightly damp.

Is an envelope closure better than a zip?

They fail in different ways, so it is a preference rather than a ranking. A zip holds the pillow more securely, particularly through a wash, which is why some reviewers prefer it. The cost is that you have a plastic or metal track sitting a few inches from your face and your hair for eight hours, and that is exactly the part of a pillowcase where something rigid can press a line into skin or snag a strand. An envelope closure has nothing hard in it, so there is nothing to catch on, and it is quicker to get on and off. Its weakness is that a very full pillow can gradually work the flap loose, which is fixed by pushing the pillow fully in and folding the flap back over the end rather than leaving it at the opening. This one is an envelope closure.

What size is it, and will it fit my pillow?

It is 50 × 75cm, which is the standard UK pillow size, also sold as housewife size. That is the pillow most UK beds come with, so for most people it fits without thinking about it. Check before you order if your pillows came with a king-size bed set, because a UK king pillow is 50 × 90cm and this will be too short for one. Worth flagging that listings in this category are inconsistent: some sellers describe 50 × 75cm as king size, which is not the UK convention, so go by the centimetres rather than the word. If your pillow is a deep or memory-foam type at the standard footprint, it will still fit, though the envelope flap will sit tighter.

Mulberry Silk Pillowcase

Why you'll love the Mulberry Silk Pillowcase

Less drag on hair overnight, which is where the frizz comes from

Envelope closure, so there is nothing hard near your face

£29.99, a penny under the department stores and less than half the specialists

Four colourways in the standard UK size, so it fits the pillow you own

What a silk pillowcase does, what it does not, and what the downsides actually are