The inconvenient truth is that cotton is the king of complacency in the world of sleepwear. It’s the default choice. The obvious choice. The “why fix what isn’t broken” choice. Except it is broken; it’s just that no one discusses it.

At unsuited, we’re here to have that conversation. Loudly. And unapologetically.

We’re done with sleepwear brands clinging to cotton. It’s time to pull back the duvet and expose the myth for what it is.

 

MYTH #1 COTTON KEEPS YOU COOL

 

Sure, cotton is "breathable". That simply means air can pass through the fabric.

But until you start sweating, you notice its high absorbency acts more like a sponge. The moment you start to sweat (even in sleep, your body cools down by sweating), cotton traps that moisture and holds on to it.

You wake up damp, chilled, and uncomfortable, as the fabric clings to your skin. Cotton really struggles to regulate body temperature. Not exactly a recipe for sweet dreams.

 

MYTH #2 COTTON IS NATURAL, SO IT'S ECO-FRIENDLY

 

We’re all for natural materials. But cotton is a wolf in sheep’s clothing. Conventional cotton production is one of the most environmentally taxing processes in fashion.

Each year, cotton crops absorb a huge 10% of all agri-chemicals and 16% of all insecticides. That’s more than any other crop on the planet. It also guzzles water. It takes 10,000 litres of fresh water to produce just one kilo of cotton. Plus, using pesticides harms ecosystems.

Organic cotton’s better, sure, but it still can’t dodge its massive water footprint. Cotton is the fashion industry’s dirty little secret. 

 

MYTH #3 COTTON IS COMFY AND COSY

 

Cotton might feel soft initially, but it doesn’t stretch, move, or adapt when you move. Have you ever shifted in bed, only to feel your sleepwear bunching up and tugging at your elbows, shoulders, or knees? Sleepwear that fails to keep up with your body movement will take you out of the lighter REM stages of sleep.

 

MYTH #4 RESPONSIBLY AND ETHICALLY SOURCED

 

The idea that cotton can be sourced responsibly is a myth, and it matters. A lot.

China grows about 20 to 30% of the world's cotton. Of that, 84% is from the Xinjiang province, where forced labour of the Uyghurs is a documented reality.

While the US has banned Xinjiang cotton, the EU still allows it, leaving a back door wide open. High street retailers want to reassure shoppers. They highlight schemes like the "Better Cotton Initiative" (BCI). But BCI uses a “mass balance” system, which lets conventional cotton mix with “Better Cotton.”

This means a T-shirt labelled as “Better Cotton” may contain no Better Cotton at all!

Cotton from Xinjiang gets mixed and traded with cotton from around the world. It's then processed in places like India, Bangladesh, and Vietnam. There, it’s turned into clothes for shops in Europe.

When a retailer says their cotton is clean, they are relying on plausible deniability. 

 

WOMEN ARE WAKING UP

 

For pillowcases at least. Neuroscientist and sleep expert Dr. Matt Walker says:

"Pillowcase friction coefficient matters. Cotton creates drag like sandpaper. Silk or satin acts like molecular lubricants, allowing skin to glide rather than grip. It is basic tribology applied to facial preservation."

Social feeds agree. Beauty creators tell millions of women to swap cotton for silk pillowcases. Primarily to reduce wrinkles.  

At unsuited, we’ve set out to design sleepwear that actually supports your sleep. Revolutionary, we know. Our materials are carefully chosen to:

• REGULATE TEMPERATURE: Stay cool when you’re hot and warm when you’re not.
• WICK MOISTURE: Keep you dry all night long.
• STETCH AND MOVE: Because your sleepwear should adjust as you move, not wake you up.
• TREAD LIGHTLY ON THE PLANET: Made for sustainability and end-of-life care—no microplastics and no landfill guilt.
• NOT INVOLVE SLAVE LABOUR: Our materials come from the EU. They are grown, processed, and sourced with fully transparent labour standards.

The real question is why settle?

Cotton’s stranglehold on sleepwear is a mindset. An industry mindset that says, “Good enough will do.”

So, if you’re still clinging to cotton as a consumer, we get it. It’s familiar. It’s cheap. But isn’t it time to expect more from the one thing that’s supposed to set you up for success every day? 

We’ll always say no to cotton. Because when it comes to sleepwear, “good enough” is anything but.