Bedding materials to avoid − the 3 worst bed sheet materials to choose, and what to shop instead

I asked an expert panel of product testers and textile designers which bedding materials to avoid to get a good night's sleep

Mellanni sheets on a bed against a gray wall beside a nightstand with a vase of yellow flowers.
(Image credit: Mellanni)

As H&G's resident Sleep Editor, I'm often asked which bedding materials to avoid. My answer varies from person to person, depending on their sleep style and their budget, but there are a few materials that I'll never recommend.

I lead a team of expert testers in the search to find the world's best bed sheets. Together, we've sampled all the major bed sheet types, ranging from cool and crisp cotton percale to smooth and silky bamboo sateen.

I asked my fellow product testers which bedding materials they avoid using in their own homes, and the answer was unanimous: polyester, nylon, and flannel.

Bedding materials to avoid – and what to shop instead

I asked an expert panel of bedding designers and sleep scientists to explain why certain bedding materials are worse for your body and for the environment. To save you time and money searching, I've included alternative sheet sets to shop, instead.

1. Polyester

Mellanni Queen Sheet Set in blue against gray walls.

(Image credit: Mellanni)

Polyester might be more affordable than other materials, but it looks and feels cheap. Ultimately, the cons outweigh the pros.

  • Poor breathability: synthetic fibers, such as polyester, have a tendency to trap heat and moisture. The multi-ply construction of polyester prevents air circulation, which can lead to stuffy, sweaty sheets.
  • Propensity to pill: polyester sheets are made from short, thin fibers in a loose weave. In my experience, polyester tends to pill after just a few washes, making my sheets look worn and shabby.
  • Environmentally unfriendly: polyester is made from petroleum, which is a non-renewable resource. The production of polyester requires large amounts of energy and emits greenhouse gases.
  • Low-quality feel: most polyester sheets I've tried come coated in chemicals. Once washed away, the sheets feel stiff and starchy.

If you're shopping for the best affordable bed sheets, I'd encourage you to rule out polyester and microfiber blends in favor of simple cotton sheets. When you shop at the best places to buy affordable bedding, you can easily find a flat sheet, a fitted sheet, and two pillowcases for less than $100.

2. Nylon

Nylon Bed Sheets in blue on a bed against white walls.

(Image credit: Amazon)

'One material that shouldn't be in bedding is nylon,' says Stephen Light, CEO at Nolah Mattress and a certified sleep science coach. 'Yes, it's durable and tear-resistant, but it's also water-resistant. That means nylon tends to trap heat and moisture inside your sheets, which isn't good for your bed or your body.

When sweat sticks to your sheets, it rubs against your skin, increasing your risk of infections and potentially causing discoloration on your sheets. Nylon is perhaps the worst bed sheet material for hot sleepers.

So, if you're looking for a bed sheet type that's durable, yet breathable, I recommend linen. The best linen sheets are lightweight and breezy, ideal for heatwaves, night sweats, and hot flashes.

3. Flannel

Flannel Core Sheet Set on a bed against a white wall.

(Image credit: Brooklinen)

Tony Klespis, certified sleep coach at Mattress Clarity, warns that 'flannel, and other materials with high thread counts, tend to trap heat, because there isn't enough space between the threads for air to flow.'

The best bed sheets should keep you just the right side of warm and dry. Whether you run cool or you live in a colder climate, I recommend cotton sateen. Sateen is more breathable than flannel, but still woven nice and tightly to retain heat and create a silky smooth sheen.

Which materials should you choose for a good night's sleep?

Egyptian Cotton sheets on a bed against a beige wall.

(Image credit: Pure Parima)

Together with my team of expert testers, I've sampled dozens of sheet sets: some made from microfiber, nylon, and flannel. In my experience, the best bed sheets are made from natural materials for lower environmental impact, with hollow fibers for better breathability.

Cotton bed sheets are a classic for a reason. Try not to focus on thread count so much as the length and the thickness of the cotton staples: that's what gives the sheets their strength. Cotton comes in two different forms. I favor cotton percale, which is crisp and cool, the sort of thing you find in hotels, but you might prefer smooth and silky cotton sateen.

Bamboo bed sheets are great for hot sleepers and eco-conscious shoppers. Naturally antimicrobial and moisture-wicking, bamboo is built to fight your night sweats and bust the bacteria that breed in sweaty, sticky environments. Even if you don't tend to run hot, I recommend a bamboo sheet set for summer nights.

I love the look and feel of linen bed sheets. Like any natural fiber, flax is prone to wrinkling, but I'd encourage you to embrace the creases as part of linen's natural charm. In my experience, linen is one of the most durable materials, able to withstand the wear and tear of long-term use and getting softer with each wash.

FAQs

What are cheap sheets made from?

Most cheap sheets are made from some sort of polyester. You might be tempted to pick up a cheap set of sheets as a spare, but I'd urge you to reconsider. As soon as you start spending $50 or less on sheets, the likelihood increases that you're buying low-quality, high-impact sheeting that won't stand the test of time.

Is polyester toxic to sleep on?

No, polyester isn't toxic for your body, but it will make you sweat more. Opting for more natural materials, including cotton, linen, and bamboo, are better for your body and for the environment.


Now that you've worked out which bedding materials to avoid, it's time to decide which bedding material is best. I've weighed up the pros and cons of each bed sheet type to help you find that material that suits your sleep style and comes in under budget.

Emilia Hitching
Sleep Editor

Emilia is our resident sleep writer. She spends her days tracking down the lowest prices on the best mattresses and bedding and spends her nights testing them out from the comfort of her own home. Emilia leads a team of testers across America to find the best mattress for every sleep style, body type, and budget.

Emilia's quest to learn how to sleep better takes her all around the world, from the 3Z mattress factory in Glendale, Arizona to the Hästens headquarters in Köping, Sweden. She's interviewed luxury bedding designers at Shleep and Pure Parima, as well as the Design Manager at IKEA. Before she joined Homes & Gardens, Emilia studied English at the University of Oxford.