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 linen 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. Explore our Bamboo Linen collection for the lightest, softest option.
Temperate climate, year-round use? 165–175 GSM is ideal. Heavy enough to feel substantial in cooler months, breathable enough for summer. Our French Linen sheets and duvet covers are made exactly for this range.
Cool climate or cold sleeper? Consider 175 GSM and above, or layer a mid-weight linen flat 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.
Shop by GSM at SCANDALINEN
All our bedding is handmade in Hanoi from OEKO-TEX certified European flax — crafted to last, and designed to get better with every wash.
- French Linen Bedding (165–175 GSM) — yarn-dyed and plain-dyed, year-round weight
- Bamboo Linen Bedding (165 GSM) — instantly soft, ideal for sensitive skin and warm climates
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Linen Pillowcases — mix and match with any set
160–175 GSM, made to your size
100% European flax, stonewashed, OEKO-TEX Standard 100 certified. Handmade to order in Hanoi — 50+ colours, any size, no minimum order.
Use code LINEN10 for 10% off.
Shop French Linen → Shop Bamboo Linen →
Which linen GSM suits your climate?
Climate matters more than most buying guides admit. The same 165 GSM sheet behaves differently in humid Brisbane than it does in a cold Melbourne bedroom in July. Here is how to choose by the room you actually sleep in.
Hot and humid climates — 160–175 GSM
Go for 160–175 GSM. Flax fibre is hollow, so it wicks moisture away from the skin and dries fast; at this weight the fabric stays open enough to move air but is still thick enough to survive a decade of washing. Lighter than 150 GSM feels marginally cooler for the first week, then starts thinning at the hem and foot of the bed. This is the range we weave for customers in Queensland, Southeast Asia and the Gulf.
Cold rooms and winter use — 175–190 GSM
Heavier linen traps a thicker layer of still air, which is what actually keeps you warm. At 175–190 GSM linen has real weight and drape, and layers well under a quilt or wool blanket. It takes longer to soften than a lighter weave, so buy it stonewashed if you do not want a break-in period.
Mild and four-season climates — 165–175 GSM
If your bedroom swings from 8°C in winter to 30°C in summer, 165–175 GSM is the one weight that works all year. It is the range we use across the SCANDALINEN French linen collection for exactly this reason: thermoregulating rather than optimised for one season.
What about children's and guest beds?
165–175 GSM again, but prioritise certification over weight — OEKO-TEX® Standard 100 means the finished fabric was laboratory-tested for over 100 harmful substances, which matters more on a bed used by someone with sensitive skin.
Looking for the general answer on linen weight rather than climate? Read our main guide: What GSM Should Linen Sheets Be?
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