Sheets Thread Count: What Number to Look For, by Fabric

Two sheet listings sit side by side: one says 400 thread count, the other says 1,000, and the 1,000 costs less. Buying the bigger number is the usual move, and it is the one Boll & Branch’s guide warns about, putting counts above 400 down as “almost always inflated”. Below are three checks that let you read any sheet label yourself: what the fabric is, whether the yarn is single-ply, and whether the count sits in the range for that weave.

The short answer

If the label says	Look for	Whose range
Cotton percale	200 to 400, or 200 to 300	Brooklinen gives 200 to 400; Boll & Branch gives 200 to 300
Cotton sateen	300 to 600, or up to 400	Brooklinen gives 300 to 600; Boll & Branch gives up to 400
Any cotton above 400	Check it is single-ply before you pay for the number	Boll & Branch calls counts above 400 almost always inflated; Crane & Canopy draws its line at 400 on one page and 430 on another
Linen or flannel	A weight in GSM or ounces, not a thread count	Brooklinen prints 155 GSM for linen and 140 GSM for flannel; Crane & Canopy prints 5.6 oz for flannel

One rule covers all of it: compare counts only within the same weave and fibre. Boll & Branch’s guide says a 200 percale and a 400 sateen are not directly comparable, and it puts a 300 long-staple cotton sheet above a 600 in standard cotton on feel and durability.

What does thread count actually count?

Thread count is the number of threads in one square inch of fabric, with the lengthwise threads (warp) and the crosswise threads (weft) added together: 150 each way is a 300. It counts threads, not softness, and it does not name the weave. Brooklinen’s own comparison says a 400-thread-count sateen “will feel noticeably different from a 400-thread-count percale, even though the number is the same.” Asked whether thread count matters, the same page answers “Less than you think”, and puts the weave and the quality of the cotton ahead of it.

The weave itself, one-over-one-under percale against four-over-one-under sateen, is covered in our percale vs sateen comparison. Here the weave matters for one reason: it decides which range a count belongs in.

What thread count should you look for?

Makers disagree on the range, so each is given with its name. These are two makers’ ranges for their cotton weaves, plus what a third prints on its own sheets.

Weave	Brooklinen	Boll & Branch	Wamsutta (its own sheets)
Percale	200 to 400 is the sweet spot; its Classic Percale is 270	200 to 300 works best, and higher counts do not improve it; its percale guide gives 150 to 400, introduced with “some say”	Original Percale listed at 400
Sateen	300 to 600 is typical; its Luxe Sateen is 480	Works well up to 400	Essentials Cotton, a four-over-one-under weave, listed at 400; its Egyptian cotton, described in the same guide as a sateen, listed at 600

Within a weave, more is not simply better. In percale, above 400 you are often looking at inflated counts on Brooklinen’s page, and on Boll & Branch’s guide higher counts do not improve a percale weave. The fibre can outweigh the number too: Boll & Branch’s thread count guide puts a 300 long-staple cotton sheet ahead of a 600 in standard cotton on feel and durability.

When the label is not a thread count

• Linen. Brooklinen’s chart prints 155 GSM for its linen in the row it labels thread count, and Parachute’s linen page prints 175 GSM. Crane & Canopy’s linen guide says that because linen fibres are thicker than cotton’s, “a lower thread count is necessary to guarantee high quality, enduring linen fabric.”
• Flannel. Brooklinen prints 140 GSM, grams per square metre, and Crane & Canopy’s flannel page prints a 5.6 oz weight with no area. Those two are not on the same scale (our reading); the flannel weights are lined up in our best flannel sheets guide.
• Bamboo and lyocell. The bamboo row of Boll & Branch’s comparison table reads “Not a meaningful metric for this fiber” under thread count. None of the pages read here gives a thread count range for lyocell (our reading), so a count on a lyocell label has no cotton range to be held against.
• Microfiber. On Boll & Branch’s list of red flags, “Microfiber labeled with thread counts” comes with the note that microfiber is polyester and the metric does not apply.

Why do some sheets say 1,000 thread count?

Because the count can go up without more cloth being woven. Yarn can be a single strand or several strands twisted together before weaving, and counting each strand separately gives a bigger number. A 1,000-count sheet made from 4-ply yarn in cheap cotton is effectively a 250 thread count sheet, a worse one, on Boll & Branch’s guide (1,000 divided by 4 is our arithmetic). Crane & Canopy’s thread count page quotes Julian Tomchin, who held home-division posts at Bloomingdale’s and Macy’s, on the same trick: some makers use two- or three-ply yarns and multiply, and the page itself says anything above 400 is usually the result of “creative counting”.

Where the line sits depends on whose page you read:

• 400. The top of Brooklinen’s percale sweet spot and of Boll & Branch’s 200 to 400 for most sleepers in long-staple cotton. On Crane & Canopy’s thread count page, 400 is the most that can realistically be woven into a square inch.
• 430. The same maker’s bed-making page says to be wary of anything above 430 and puts a long-lasting sheet at 300 to 430. It gives 400 on one page and 430 on another, so both are shown.
• 600. 300 to 600 is typical for sateen on Brooklinen’s page. Boll & Branch’s guide says any claim above 600 should be treated with skepticism and lists counts above 600 among its red flags.

None of the ranges or ceilings above goes higher than 600 (our reading), so a 1,000 on a cotton label is outside every range read here.

How do you check a listing in front of you?

Work down the product page in this order (our suggestion for the order; each check comes from what the makers tell shoppers to verify).

1. Name the fabric. Is it cotton percale or sateen? Then the ranges above apply. If it is linen or flannel, look for a weight instead. If the fibre line says “cotton-rich” or “cotton-blend”, polyester is most likely present on Boll & Branch’s checklist, so the count describes a blend (our reading). Look for 100% cotton and for “long-staple” on the label.
2. Look for the ply. On Boll & Branch’s checklist, a brand that claims a high count should be verified as single-ply. If the page does not print it, ask the brand before you pay for the number. If the yarn is multi-ply, divide the count by the number of plies to see what you are comparing, as in the 4-ply example above (our arithmetic); if the brand will not say, compare the sheet as if it were not single-ply (our suggestion).
3. Set the count against the weave’s range. Inside the range, the number is not the reason to pass. Above 400 on cotton, go back to check 2.

The count will not tell you the fibre quality and length that make a great sheet on Boll & Branch’s guide, or the weave and the cotton that matter more on Brooklinen’s. It also says nothing about pocket depth or the care label, so read those on the same page (our suggestion).

Three labels, read in that order

• Brooklinen Classic Percale ($199 queen, Price for reference only). The page says 100% long-staple cotton, percale, 270 thread count. Check 1 is done, and 270 is inside both Brooklinen’s 200 to 400 and Boll & Branch’s 200 to 300. The description and chart read here do not mention ply, and because every percale range given here tops out at 400, ply matters less at 270 (our reading).
• Avocado Deep Pocket Organic Cotton Sheets ($199 queen, Price for reference only). The page says sateen, GOTS-certified organic cotton, “400 thread count single-ply”. Check 2 is answered on the label, and 400 is the top of Boll & Branch’s up to 400 for sateen and inside Brooklinen’s 300 to 600.
• Ettitude Signature Bamboo Sheet Set ($359 queen, Price for reference only). The page says 100% CleanBamboo lyocell, “1,000 thread count sateen weave”, and also “comparable to cotton 1,000 thread count” for the feel. It prints a fabric weight of 120gsm as well, and no ply on the page text read here. At check 1 it is not cotton, so the cotton ranges do not apply, and the weight is the second number the page gives: compare it only against other lyocell sheets that print GSM, because none of the pages read here gives a lyocell weight range (our reading).

These are examples of reading labels, not picks. For full picks by sleeper type, see our best sheets guide.

What mistakes do people make with thread count?

• Comparing across weaves or fibres. On Boll & Branch’s guide a 200 percale and a 400 sateen are not directly comparable, and a 300 in long-staple cotton can beat a 600 in standard cotton, so the counts alone mislead.
• Expecting a higher count to sleep cooler. Thread count is a poor predictor of cooling on Boll & Branch’s percale guide, which says dense high-count weaves trap heat; Brooklinen’s pick for people who run warm is a 270 percale. The makers’ picks are in our best cooling sheets guide.
• Treating GSM and thread count as one scale. Brooklinen’s chart puts 155 GSM for linen in the same row as 270 and 480 for its cotton. A weight is grams per square metre, a count is threads per square inch, so a bigger number in one row does not beat a smaller one in another (our reading).

Where these numbers come from

Ranges, ceilings and weights come from the Boll & Branch, Brooklinen, Crane & Canopy and Wamsutta guides and the Brooklinen, Avocado, Ettitude, Parachute and Crane & Canopy product pages, read on 1 November 2026. Prices are the queen prices shown on those pages without a discount code. Which maker gives which range in the tables is our own count across those pages, and the steps and readings we added are marked.

Frequently asked questions

Is 1,000 thread count good?

On the two makers' cotton guides that speak to it, usually not. Boll & Branch calls a 1,000 count claim almost always a product of multi-ply inflation, and Crane & Canopy's thread count page says anything above 400 is usually the result of “creative counting”. One lyocell listing read here prints 1,000 as well, and none of the pages read here gives a lyocell range to hold it against, so check the fibre and the ply on that page, and compare its weight only with other lyocell sheets that print one.

Is 400 thread count good?

It sits inside most of the ranges read here, at the top of several. It is the upper end of Brooklinen's 200 to 400 for percale and of Boll & Branch's 200 to 400 for most sleepers in long-staple cotton, and it is the most Crane & Canopy's thread count page says can realistically be woven into a square inch. Boll & Branch's own percale range is 200 to 300, so a 400 percale is above it, and its sateen range is up to 400.

What thread count is best for hot sleepers?

The makers do not use one number. Brooklinen points people who run warm to its Classic Percale at 270 thread count, Wamsutta lists its Original Percale, filed under Crisp & Cool, at 400, and Boll & Branch's percale guide calls thread count a poor predictor of cooling and says overly high counts can work against percale. These are the makers' descriptions of their own sheets, not measurements.

Does thread count matter for linen?

Not as the label number. Brooklinen's chart prints 155 GSM for its linen in the row it labels thread count, and Parachute's linen page prints 175 GSM. Crane & Canopy's linen guide says linen's thicker fibres mean a lower thread count is necessary for high-quality linen.