Thread Count Explained: What Is a Good Thread Count for Bedding?

Thread count is the number of threads — warp and weft combined — woven into one square inch of fabric. For cotton bed linen, anything between 200 and 400 is genuinely good. Above 400 the number stops telling you much, and above 800 it is usually a marketing figure rather than a measure of quality.

That is the short answer. Below is the longer one: what the number actually counts, what each range on a label really means, how thread counts get inflated, and why the weave and the yarn tell you more about a sheet than the number printed on the packaging.

What thread count actually measures

A woven fabric is made of two sets of threads. Warp threads run lengthways down the loom; weft threads are passed across them. Thread count adds the two together within one square inch: a fabric with 110 warp and 110 weft threads per inch has a thread count of 220.

So the number is a measure of density — how tightly the cloth is packed — and nothing else. It says nothing about the fibre, nothing about how long the cotton staple is, nothing about how the threads are interlaced, and nothing about whether the fabric was finished with softeners that wash out after a month. Those are the things you actually feel.

Thread count chart: what each number really means

So what is a good thread count?

For cotton bed linen, 200 to 400. Within that range, pick by weave rather than by number.

Our organic cotton percale fitted sheets are woven at 220 threads and weigh 132 g/m². Our organic cotton satin fitted sheets are woven at 276 threads and weigh 120 g/m². Both are made in Portugal, and both sit deliberately in the middle of the useful range rather than at the top of a number that would cost you more and breathe less.

Why a higher thread count can actually be worse

Packing more threads into the same square inch leaves less space between them, and that space is what air moves through. A very densely woven sheet holds heat against you, which is exactly what you do not want in summer — and the same density means a duvet cover takes noticeably longer to dry on the line.

Density also cannot rescue poor raw material. Cotton with a short staple length produces a thread that stays slightly stiff no matter how tightly it is woven, so a 600-count sheet made from mediocre cotton can feel worse against the skin than a 200-count sheet made from good cotton. If you sleep warm, our percale bed linen is the one to choose: the tight plain weave is what makes it crisp, and the moderate count is what keeps it breathable.

How thread counts get inflated

The most common trick is ply. A thread can be spun from a single yarn, or from two, three or four yarns twisted together. A single-ply thread should be counted once — but some manufacturers count each yarn inside it separately, so a fabric with 300 real threads per inch is sold as 900. This is how the four-figure numbers on discount bedding are produced.

Ply is also a quality signal in its own right. A yarn long and strong enough to be spun and woven on its own is better cotton than one that has to be twisted together with others to hold up. Single-ply threads make a lighter, softer cloth; multi-ply threads make a heavier, rougher one.

The second figure worth knowing is cotton count, written Ne, which measures how fine the yarn itself is — the higher the number, the finer the thread. Our satin is woven with a cotton count of 60, a fine yarn, which is why 276 threads produce a fabric that is lighter than the percale rather than heavier.

The weave matters more than the number

How the threads are interlaced changes the feel of a fabric far more than a few dozen threads either way.

Plain weave — percale

Each weft thread passes alternately over and under each warp thread, like a chessboard. Both faces of the cloth look identical, and the structure is exceptionally stable, which is why plain weave is the standard for bed linen. This is the weave that makes percale crisp, matte and cool.

Satin weave — sateen or atlas

The weft thread passes under one warp thread and then over several. That leaves long floats of thread lying on the surface, which is what produces the smooth hand and the soft sheen. It takes more skill to weave, which is part of why sateen usually costs more than percale of the same fibre. Watch this short video to see why our satin is naturally soft and breathable.

Twill weave

The weft passes under one warp thread and over two, producing the diagonal ribbing you see on denim. Curves and patterns are easier to weave into twill, but it is less stable than plain weave, so it is more common in clothing than in bedding.

Panama weave

A plain weave that uses several warp and weft threads side by side instead of single ones. The result is robust and hard-wearing, and it suits thicker fibres — more of a furnishing fabric than a sheet.

Percale or sateen: our two fabrics compared

Our percale is GOTS-certified from field to finished product. Our satin is made from certified organic cotton; because the facility that sews it is not GOTS-certified, we do not claim the label for this product.

Still undecided? Take our two-minute quiz, or browse all our organic cotton fitted sheets and satin bed linen.

Does linen have a thread count?

Not in any useful sense. Thread count is a cotton measure, and applying it to linen — the fabric woven from flax — is misleading, because flax fibres are considerably thicker than cotton ones. A good linen sheet may have a thread count somewhere around 80 to 150, and that low number is a property of the fibre, not a sign of poor quality.

Linen is judged by weight instead, in grams per square metre; bedding linen typically falls somewhere between 150 and 200 g/m². If you see a linen sheet advertised with a high thread count, treat it as a sign that the seller is borrowing a cotton number for its marketing value. Our own bed linen is cotton, not flax, which is why we quote a thread count for it at all.

Frequently asked questions about thread count

In short

Thread count is worth glancing at and not worth obsessing over. Once a cotton fabric is somewhere between 200 and 400 threads per square inch, what decides how the sheet feels is the length of the cotton staple, whether the yarn is single-ply, and which weave it is woven in. A brand that tells you all three — rather than one large number — is telling you something real.

Would you like to receive exclusive offers? Stay connected with Zizzz!

Why not stay in touch? Sign up for our newsletter to enjoy special offers, exclusive discounts, and the latest updates on our eco-friendly baby and children’s products, duvets, pillows, and premium-quality bed linen.

Our Mission at Zizzz

Enhancing quality of life and well-being through better sleep

At Zizzz, our mission is to improve quality of life by promoting good sleep as an essential component of overall well-being.

We offer products and resources that promote restorative and revitalizing sleep, recognizing it as one of the three pillars of a healthy lifestyle, alongside a balanced diet and regular physical activity.

By prioritizing quality sleep, we empower individuals to lead healthier and happier lives.

Preserving our environment and helping to build a better future

We achieve this goal by using only natural materials such as wool, traceable down, and organic cotton in our products, ensuring a luxurious and eco-friendly sleep environment.

Committed to sustainability and ethical practices, we produce locally, supporting local economies and reducing our carbon footprint.

Choosing Zizzz means investing in your own well-being while contributing to a more sustainable future for all.