Linen or silk: which fabric should you choose for sleeping?

In short: linen and mulberry silk don't compete for the same place in a bed. Linen is a short, irregular fiber that creates volume and dries quickly; silk is a smooth, continuous filament that glides over the skin and hair. One brings relief to hot sleepers who love a fabric with character; the other helps protect skin and hair from friction damage. Here's how I choose, piece by piece - and why I have both at home.

People almost always ask me in the same order: “I'm torn between linen and silk,” then, two sentences later, “What season is it for, by the way?” That's where everything comes down to. Asking which is better is like asking whether oak is better than walnut. The real question is: better for what, in which room, for which sleeper?

Two fibers, two ways of managing heat and moisture

Linen: a short, stiff fiber that creates air pockets

Linen comes from the plant's stem: short, thick, slightly irregular fibers are extracted from it. These little bumps, called slubs, give the fabric all its character. When woven, they create a stiff fabric that doesn't lie flat against the body: it forms hollows, pockets, and tiny pockets of air. And in a bed, volume means airflow.

Linen is also highly hygroscopic - its moisture regain is generally cited at around 12% - and releases this moisture quickly because the fiber is rough and the weave is airy. That's what gives it that dry, cool feel, even after a restless night. Its drawback is the exact opposite of its strength: its stiffness feels a little scratchy for the first few months, and wrinkling is inherent. Linen that doesn't wrinkle isn't linen.

Mulberry silk: a smooth, continuous filament that holds nothing back

Silk is the opposite. It isn't a short fiber that's spun: it's a filament unwound for hundreds of meters without interruption, which is why its surface has almost no friction. Its moisture regain is also high, at around 10 to 11%, but it doesn't have linen's volume or roughness: it conforms to the body instead of holding it away, and regulates heat more through contact than ventilation.

Its real strength is reducing friction. A smooth surface catches less on hair and pulls less on the skin as you change positions — which explains why it’s used first and foremost for pillowcases, where your cheek and hair spend seven hours. Linen can’t compete here: its texture is precisely what catches.

Linen or silk: a comparison table

What the science says — and, above all, what it doesn’t

I want to be clear about this, because this is where marketing claims go off the rails most quickly. Research on fiber type and sleep quality does exist, but it’s limited. A systematic review published in the Journal of Sleep Research (Li et al., 2024, doi:10.1111/jsr.14217) set out to bring together what we know about the effects of fibers, both in sleepwear and bedding. The available studies are still few and based on small sample sizes, focusing mostly on heat and moisture exchange and room temperature.

Three caveats, then. No direct “linen versus silk” comparison is currently considered authoritative: if a brand gives you a numerical winner, it’s extrapolating. Room temperature often matters more than the material itself — a room at 22 °C and a room at 17 °C don’t call for the same bedding. And textile comfort is measured in heat exchange, not health claims: a beautiful material can make a night more pleasant, but it won’t cure anything.

How I choose, piece by piece

This has always seemed like the most honest approach to me: you don't choose a fabric for a bed, you choose it for a purpose.

• Pillowcase: silk, without hesitation. This is where friction is greatest and the surface area smallest. If you're going to try just one silk item, make it this one. 19 momme is more than enough; above 22, you're mainly paying for density.
• Duvet cover: linen often wins. Large surface area, visible use, frequent washing, and no concern about rubbing against the skin. Linen is more forgiving, easier to live with, and lasts a decade.
• Fitted sheet: a matter of personal preference. If you sleep hot and move around a lot, linen will feel drier. If your skin reacts to rough textures, silk will suit you better — just bear in mind that a silk fitted sheet needs a well-chosen pocket depth to stay taut.
• Flat sheet: a matter of taste. It's the most decorative of the four pieces. I choose linen when I want texture in the bedroom, silk when I want clean lines.

If you're starting from scratch, browse our full range of bedding before settling on a fabric: when you compare the pieces side by side, you often discover that you were only unsure about one item.

Care: the real deciding factor

It's the criterion people forget when buying, and the one that determines everything in use. Linen is forgiving: it washes without any special precautions, gets softer with every wash, and forgives mistakes. You simply have to accept that it will never look perfectly smooth.

Silk calls for the opposite: cold or lukewarm water, a mild detergent with no enzymes or bleach, no tumble dryer, and flat drying in the shade. Nothing complicated, but nothing to improvise. I'll be frank: poorly cared-for silk ages quickly, and that's almost always what disappoints, never the fiber. If the upkeep feels like too much, linen is the sensible choice.

My honest advice: stop choosing

The beds I find most successful aren’t made from just one material. They pair a silk pillowcase, for the one area where friction matters, with a linen duvet cover, for the large surface you can wash without a second thought. The contrast in textures is also what gives a bedroom depth: linen’s matte finish brings out silk’s sheen, and vice versa.

It’s also the least costly way to get it wrong: silk where its benefits are measurable, linen where its durability works for you. And if you’re actually unsure about silk itself, the other question I’m asked all the time is covered here: silk or satin: what’s the difference?

Frequently asked questions

Is linen cooler than silk?

In hot weather, generally yes: its stiffness creates pockets of air, and it releases moisture very quickly. Silk, on the other hand, feels immediately cool to the touch, then warms to your skin. Two different sensations, not a hierarchy.

Is silk suitable for winter, when heating dries out the air?

Yes, and it’s actually one of its most comfortable seasons. Its smooth surface won’t catch on skin chapped by dry air, and it won’t create the “cardboard-like” feel that brand-new linen can have in January.

Can you mix linen and silk in the same bed?

Absolutely, and I recommend it. The two fabrics should be washed separately, which is preferable anyway: silk needs a gentler cycle than linen.

How do you compare the quality of different linens and silks?

Linen is measured by weight, expressed in g/m²: the higher the number, the denser and more durable the item. Silk is measured in momme: this tells you whether you’re looking at a genuine bedding fabric or a garment fabric repurposed for bedding.

Does linen really soften over time?

Yes, it’s one of the rare textile promises that holds up in practice. Allow about ten washes for the initial stiffness to ease and the fabric to become supple.

If you’d like to see the two fabrics side by side before deciding, you’ll find everything in our Bedding & Home collection: comparing them piece by piece, rather than fiber by fiber, makes the choice obvious.

— Colette, for the StudioSoie Journal