You spend about 2,920 hours a year with your bedding against your skin. That's eight hours a night, every night.
It's more skin contact than any piece of clothing you own.
Most of us pick bedding by colour, price or thread count. Hardly anyone asks what was done to the fabric before it reached the shop.
That question matters more than you'd think.
What's actually in normal bedding?
It's not really about the cotton plant. It's about what happens in the factory.
Most bedding is dyed, bleached and treated with chemicals. None of it shows up on the label. Two are worth knowing about.
Formaldehyde
This is used to stop sheets creasing and to stop dye washing out.
It's a known skin irritant. Health researchers class it as a "strong sensitiser" — meaning your skin can become reactive to it over time, with repeated contact.
Reactions get worse with heat, sweat and rubbing. Which is a good description of a bed.
PFAS ("forever chemicals")
These create stain-resistant and wrinkle-free finishes. They're also used in farming — 10 of the 98 pesticides sprayed on US cotton in 2021 contained PFAS.
Neither chemical is listed at checkout. Neither is visible. And neither fully washes out.
Who does this matter to most?
Not everyone reacts. But plenty of people do.
In the UK, eczema affects:
- 12% of children
- 5% of adults aged 18–74
- 9% of adults over 75
It peaks at 16.5% of two-year-olds — the age spending the most hours in bed.
And it's rising. Childhood eczema in the UK went from 5.1% in 1946 to around 20% by 2012.
If you or your child has eczema or sensitive skin, your bedding is one of the few things you fully control.
Shopping for a baby or toddler? See our organic cotton nursery bedding same certification, cot and cot bed sizes.
What does GOTS certified actually mean?
"Organic" on a label means very little by itself. In most countries, no law stops a brand using the word.
GOTS stands for Global Organic Textile Standard. It's different because it checks the whole chain the farm, the mill, the dye house, the factory — not just the finished sheet.
For bedding to carry it, it must:
- Be at least 70% certified organic fibre
- Be made without formaldehyde, chlorine bleach, heavy metals, banned dyes or GMOs
- Pass residue testing in independent, accredited labs
- Use only dyes that have been checked for toxicity and how well they break down
- Meet international labour standards — no forced or child labour, safe conditions, fair pay
The 2023 update made the rules stricter again, banning more substances and lowering the limits on others.
Here's the important bit: you can check it. Real GOTS products have a licence number listed in a public database. If a brand can't give you one, they're asking you to just trust them.
Our bedding is GOTS certified through the Soil Association, and Fairtrade certified (FLO ID 37247). Both numbers are public. That's what they're for.
Three organic cotton claims we won't make
You'll see these all over the internet. We'd rather tell you the truth.
"Cotton uses 25% of the world's pesticides"
It doesn't.
This number comes from a 1995 marketing report written for chemical companies. That report said cotton was about 10% of pesticide sales — and the figure got copied wrong, over and over, for thirty years.
Current industry data puts cotton at roughly 4.7% of global pesticide sales.
"It takes 20,000 litres of water to make 1kg of cotton"
Also out of date. Newer figures put the global average nearer 2,000 litres per kilo, though it varies a lot depending on where it's grown.
"Organic cotton is chemical-free"
No fabric is. GOTS allows gentler dyes and treatments that break down safely. It's a strict, checked standard, not zero chemicals.
Anyone promising zero is either confused or hoping you won't ask.
The honest case is strong enough. Cotton still uses far more insecticide than its share of farmland, and a real chunk of what's sprayed is classed as highly hazardous. That's documented. It doesn't need exaggerating.
Fairtrade: the people who grow it
Organic farming takes synthetic pesticides away from the people handling the crop — mostly farmers and pickers in India, Turkey and East Africa.
They carry the health risk long before anything reaches a shop.
Fairtrade certification checks the trading terms on top of that. Same idea as the GOTS licence: not a promise, a record.
How to check any bedding brand in 90 seconds
- Ask for the licence number. GOTS is licensed to a named company. No number, no certification.
- Check the percentage. GOTS needs at least 70% organic fibre. Good brands say theirs plainly.
- Watch for finish claims. "Wrinkle-free", "easy-care" and "stain-resistant" usually mean the exact chemicals you're avoiding.
See our full certification details, including licence numbers you can look up yourself.
Frequently asked questions
Is organic cotton bedding better for eczema?
There's no cure in a duvet cover, and we won't claim one. What certified organic bedding does is remove known skin irritants like formaldehyde from the fabric you sleep on. For anyone with reactive skin, that's one less thing to rule out.
Is organic cotton bedding worth the extra cost?
It costs more because organic farming yields less and certification isn't free. Whether that's worth it depends on how much you care about what touches your skin for a third of your life, and about the conditions the cotton was grown in.
What's the difference between GOTS and OEKO-TEX?
OEKO-TEX tests the finished product for harmful substances. It works on any fabric, including polyester. GOTS covers the whole supply chain and requires organic fibre. OEKO-TEX asks "is this safe?" GOTS asks "how was this made?"
Does organic cotton bedding get softer?
Yes. Without harsh chemical softeners or resin finishes, organic cotton starts a little crisper and softens genuinely with each wash, rather than losing a coating.
How do I know a brand's organic claim is real?
Ask for the GOTS licence number and check it in the public GOTS database. Certification belongs to a specific company and can be looked up by anyone.
Organic cotton bedding won't cure anything. It's not medicine.
What it gives you is simpler: a checked, honest answer to what your skin touches for a third of your life verified by someone other than the company selling it.
For most people, that's fair enough. If you have sensitive skin, or a small child, it's an easy decision.
That's the peace of mind we're selling. Nothing more.
Sleep Organic bedding is GOTS certified (verified by the Soil Association), Fairtrade certified (FLO ID 37247) and organic certified (DK26565)