Thread count gets all the attention — but when it comes to linen bedding, GSM is the number that actually matters. Here's how to read it, and how to choose the right weight for your climate and sleep style.
What is GSM?
GSM stands for grams per square metre — it's a measure of fabric weight. The higher the GSM, the heavier and denser the fabric. The lower the GSM, the lighter and more breathable it is.
Unlike cotton, linen doesn't use thread count as a meaningful quality indicator. GSM is the standard measure used across the linen industry, and it tells you far more about how a sheet will actually feel and perform.
Why GSM matters more than thread count for linen
Thread count was designed for tightly woven cotton percale. Applied to linen, it's largely meaningless — a high thread count linen sheet isn't necessarily better quality, just woven differently. GSM directly reflects the density and weight of the fabric, which affects breathability, durability, and how the sheet feels against your skin.
The GSM ranges explained
Under 150 GSM — Lightweight
Very light, almost gauzy. Maximum breathability. Best for hot climates or warm sleepers who want the feel of linen without any weight.
150–175 GSM — Mid-weight (the sweet spot)
This is where most quality linen bedding sits. Substantial enough to drape beautifully and feel luxurious, yet breathable enough for year-round use. SCANDALINEN's French linen (yarn-dyed and plain-dyed) sits at 165–175 GSM, and our Bamboo Linen blend at 165 GSM — both in this ideal range. Soft from the first use, and gets better with every wash.
175–200 GSM — Medium-heavy
Noticeably heavier hand feel. Good for cooler climates or those who prefer a more substantial sheet. Still breathable compared to cotton at the same weight, but warmer than mid-weight linen.
200 GSM and above — Heavy
Rarely used for bedding. More common in linen for curtains, tablecloths, or upholstery. Too warm and stiff for most sleepers.
Which GSM is right for you?
Hot climate or warm sleeper? Stay at or below 165 GSM. Linen's natural thermoregulating properties do most of the work — you want a weight that doesn't add unnecessary warmth.
Temperate climate, year-round use? 165–175 GSM is ideal. Heavy enough to feel substantial in cooler months, breathable enough for summer.
Cool climate or cold sleeper? Consider 175 GSM and above, or layer a mid-weight linen sheet with a linen duvet cover for adjustable warmth.
A note on bamboo linen blends
If you're considering a bamboo linen blend (45% linen / 55% bamboo rayon), the GSM works the same way — but the bamboo rayon adds a softer initial hand feel compared to pure linen at the same weight. At 165 GSM, a bamboo linen sheet feels instantly soft from the first use, with no break-in period needed. It's a good option if you love the look and breathability of linen but want something gentler against the skin.
The bottom line
When shopping for linen bedding, ignore thread count entirely. Look at GSM, consider your climate and sleep style, and choose accordingly. For most people in most climates, 165–175 GSM is the ideal range — and it's where quality linen bedding brands focus for good reason.
0 comments