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What does thread count mean?

Thread count alone won't help you pick the best quality bed sheets.

person making a bed thread count
Last updated: 22 June 2020

Thread count. If you're browsing for a new sheet set it's hard to avoid these bedding buzzwords. As with megapixels on a digital camera, thread count alone won't help you pick the best product on the shelf.

The fabric spin cycle

As you'd expect, "thread count" generally refers to the number of threads on a piece of cotton sheeting. It's a label often used to up sell expensive sheets, because most of us have been led to think a higher thread count means better quality fabric.

The size of the area used to measure thread count varies by country and manufacturer - some use inches, others centimetres. There's no industry standard, and manufacturers don't have to tell you how they've counted those tiny fibres. So thread count alone isn't a reliable buying guide

Threat count: more than just a number

There are only so many threads that can fit into the measurement area without making an overly-dense sheet. However, manufactures seem to keep finding ways to cram more and more threads into this small space without thickening things up.This is why "optimal thread counts" have increased steadily over the years.

But, these claims become rather dubious once you hit a certain number of threads. Brands can get away with using multi-ply threads while claiming that each ply in a thread counts towards the thread count.

For example, sheets with a thread count of 400 may use single ply material. The "higher-quality" 800 thread sheets from the same company likely use two-ply thread to bump up the count. Why is this a problem? Multi-ply threads don't tend to be as durable due to their smaller size so your sheets won't last as long. Also, you're not really getting any extra threads, just extra ply and that has little to no impact on comfort.

Identifying faux-threads

This marketing ploy means that a maximum thread count doesn't really exist. But there is a point where manufacturers have to start using multi-ply.

  • Single-ply thread count caps out at around 400 - 500.
  • After that, manufacturers have to use two-ply thread which is fine but not as robust.
  • Thread counts of 800 - 1000 or more likely use multi-ply threads which are more expensive and less durable with limited benefits.

So in terms of thread count alone, anything around 400 will be good quality and comfortable, broadly speaking. But, thread count is just one piece of the puzzle. The material, its quality, the type of yarn and the weave type are just as, if not more, important.

Material and preparation

Natural materials, such as cotton, are generally better than their synthetic counterparts. They tend to breathe more which makes for a better night's sleep. Then, the quality of the yarn itself factors in. Try to find out where the manufacturer sourced their yarn and question the brand's quality and reputation.

Fabric softness depends a lot on how the cotton threads are spun or treated before they're turned into sheets. If coarser threads are used in weaving, a high thread count bed sheet won't feel much different to one with a lower thread count

So think of it this way. Marketing suggests that thread count is by far the most important measure, which means a 400 thread polyester sheet should feel just as comfortable as a 400 thread cotton sheet. But that's not the case all.

Quality sheet types

  • Egyptian cotton sheets are made from a species of cotton known for its quality. This type of cotton makes fabric that's luxurious and durable, lasting decades with the right care.
  • Sateen is a type of fabric made from pre-treated cotton using a satin weaving style. You'll generally find these sheets are soft and luxurious, but can pill and wrinkle more than Egyptian cotton.
  • Percale is a closely woven fabric that's durable, smooth and crisp. Percale weave is often used in bed covers and sheets with complicated patterns.

Terms like "percale" and "sateen" describe how cotton is woven, and will affect how the fabric feels. Adjectives like "luxury", "smooth" and "soft" are pure marketing speak. Like thread count, they're a pretty meaningless indicator of quality. A quick feel of the fabric is a better bet when it comes to choosing the right sheets for you.

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