OEKO-TEX Standard 100: What It Is, What It Tests, and Why It Matters (2026)

You've probably seen the OEKO-TEX label on sheets, clothing, or mattress tags. But what does it actually mean?

OEKO-TEX Standard 100 is a global certification that tests textiles for harmful substances. If a product carries this label, every component has been tested by an independent lab and cleared for safety. It's one of the most widely recognized textile safety certifications in the world, with over 35,000 certified companies across more than 40 countries.

At Fawcett Mattress, our organic cotton, organic Joma Wool, and bedding products carry OEKO-TEX certification because we believe you should know exactly what you're sleeping on. Here's what the certification means, how it works, and why it matters for your mattress and bedding.

Key Takeaways

• Tests for 1,000+ harmful substances including formaldehyde, heavy metals, pesticides, phthalates, and PFAS
• 4 product classes based on skin contact. Class 1 (babies) has the strictest limits. Mattresses fall under Class 2.
• Not an organic certification. OEKO-TEX certifies product safety, not how raw materials were grown or farmed.
• Certificates are valid for 1 year. Manufacturers must retest and renew annually.
• You can verify any label at the OEKO-TEX Label Check using the certificate number or QR code.

What Is OEKO-TEX Standard 100?

OEKO-TEX Standard 100 is a globally standardized, independent testing and certification system for textile products. It was created in 1992 by the International OEKO-TEX Association, based in Zurich, Switzerland.

The certification has one purpose: confirm that a textile product is safe for human health. It does this by testing the finished product against a list of over 1,000 regulated and non-regulated substances known to be harmful. That list started at around 100 substances in 1992 and has expanded every year since, incorporating new scientific findings and regulatory updates.

OEKO-TEX Standard 100 is voluntary, not legally required. But its requirements often exceed the substance restrictions set by national and international regulations, including the EU's REACH directive and the U.S. Consumer Product Safety Improvement Act (CPSIA).

What Does OEKO-TEX Standard 100 Test For?

The certification tests for substances that can harm human health through skin contact, ingestion, or inhalation. Every single component of the product is tested, from the outer fabric to the thread, buttons, zippers, coatings, and dyes.

Substances tested include:

• Formaldehyde: a preservative that can irritate skin and airways
• Heavy metals: lead, cadmium, arsenic, mercury, and others
• Pesticides and herbicides: residues from raw material processing
• Phthalates: plasticizers that are endocrine disruptors
• PFAS: per- and polyfluorinated substances ("forever chemicals")
• Azo dyes: certain colourings linked to cancer
• Chlorinated phenols: preservatives that can cause skin reactions
• Allergenic dyes: colourings that trigger allergic reactions
• Volatile organic compounds (VOCs): chemicals that off-gas into indoor air

The limit values are updated at least once per year. In many cases, OEKO-TEX limits are stricter than what the law requires. For products with intense skin contact, the requirements are even tighter.

This matters for mattresses and bedding because you spend 7 to 9 hours per night in direct contact with these materials. Substances like formaldehyde and VOCs are commonly found in synthetic foams and chemical fire retardants used in mattresses.

The 4 Product Classes

OEKO-TEX Standard 100 uses four product classes. Each class has different testing limits based on how much skin contact the product has. The closer the product is to your skin, the stricter the requirements. 

For mattresses and bedding: Most sleep products fall under Class 2 (direct skin contact). Crib mattresses and baby bedding fall under Class 1, which has the strictest limits of any product class. Class 1 includes additional testing for colour bleeding through saliva and perspiration, because babies put everything in their mouths.

How OEKO-TEX Certification Works

A manufacturer applies to one of 18 independent partner labs worldwide. The lab tests every material in the product against the OEKO-TEX criteria catalogue. If it passes, the manufacturer receives a certificate valid for one year.

The process:

1. Application. The manufacturer submits product samples and documentation.
2. Testing. The lab tests all components against the restricted substance list for the applicable product class.
3. On-site audit. An OEKO-TEX auditor inspects the manufacturing facility.
4. Certificate issued. Valid for 12 months. The manufacturer can now use the OEKO-TEX label.
5. Annual renewal. New samples must be submitted and retested every year.

The testing is independent and standardized globally. The same criteria apply whether the product is made in Canada, Germany, or Vietnam. This consistency is what separates OEKO-TEX from self-declared "non-toxic" or "chemical-free" marketing claims that have no third-party verification behind them.

OEKO-TEX Standard 100 vs GOTS: What's the Difference?

These two certifications test different things. OEKO-TEX Standard 100 certifies that the finished product is safe. GOTS (Global Organic Textile Standard) certifies that the raw materials were organically grown and processed.

Bottom line: A product can be OEKO-TEX certified without being organic, and an organic product can exist without OEKO-TEX certification. They complement each other. The strongest guarantee is having both.

Fawcett Mattress uses materials that carry both types of certification. Our organic cotton and organic Joma Wool are OEKO-TEX Standard 100 certified, and our bedding uses GOTS-certified organic fibres. You can see the full list of certifications on our certifications page.

How to Verify an OEKO-TEX Label

Any OEKO-TEX label can be verified online in seconds. Look for the certificate number on the product tag or packaging, then enter it at the OEKO-TEX Label Check. Many labels also include a QR code you can scan with your phone.

The Label Check confirms the certificate is valid, shows the product class, and identifies the certifying institute. If a product claims to be OEKO-TEX certified but doesn't have a verifiable certificate number, that's a red flag.

Frequently Asked Questions

Is OEKO-TEX Standard 100 the Same as Organic?

No. OEKO-TEX Standard 100 certifies that a finished product is free of harmful substances. It does not certify how the raw materials were grown. A product can be made from conventional (non-organic) cotton and still carry OEKO-TEX certification, as long as it passes the safety tests. For organic certification, look for GOTS or GOLS labels.

Is OEKO-TEX Standard 100 Safe for Babies?

Yes. Products certified under Class 1 (babies and toddlers up to age 3) meet the strictest testing limits in the OEKO-TEX system. Class 1 includes additional testing for colour fastness to saliva and perspiration. If you're buying crib sheets, baby clothing, or a crib mattress, look specifically for Class 1 certification.

Is OEKO-TEX Standard 100 Legit?

Yes. OEKO-TEX has been operating since 1992 and is one of the most widely recognized textile safety certifications in the world. Testing is conducted by 18 independent labs, not by the manufacturers themselves. The criteria are updated annually and often exceed government regulations. Over 35,000 companies worldwide hold OEKO-TEX certifications.

Does OEKO-TEX Only Apply to Cotton?

No. OEKO-TEX Standard 100 applies to any textile material, including cotton, wool, silk, linen, polyester, nylon, and blended fabrics. Even synthetic materials can be certified if they meet the substance safety requirements. The certification covers raw materials, semi-finished goods, and finished products.

What OEKO-TEX Standard 100 Means for Mattresses and Bedding

You spend roughly a third of your life in bed. Your mattress, sheets, pillows, and duvet are in direct contact with your skin for hours every night. That makes the materials inside them more important than almost any other product you own.

** Why this certification matters for sleep products:**

Mattresses are complex products. A mattress contains fabric, foam or latex, wool, adhesives, thread, and sometimes springs. OEKO-TEX tests every one of these components, not just the outer cover. Memory foam is harder to certify. Most synthetic foam mattresses rely on CertiPUR-US, which only tests the foam itself. OEKO-TEX tests the entire product. As a result, natural mattresses have an easier path to certification because natural materials like latex, cotton, and wool don't contain the chemicals that synthetic foams require.

Eco Passport covers non-textile components. Chemicals, adhesives, and dyes used in manufacturing can also be OEKO-TEX certified under the Eco Passport standard. Made in Green goes further. OEKO-TEX Made in Green combines substance safety testing with verification of sustainable and socially responsible production practices. It includes a traceable product ID.

At Fawcett Mattress, our organic cotton ticking and organic Joma Wool are OEKO-TEX Standard 100 certified. Our seashell-based adhesive carries OEKO-TEX Eco Passport certification. And our organic cotton percale sheets carry OEKO-TEX Made in Green certification, the highest standard in the OEKO-TEX system.

Because every Fawcett mattress is built with natural materials (100% natural Talalay latex, organic cotton, organic wool), none of our products contain the synthetic foams or chemical fire retardants that make OEKO-TEX certification difficult for conventional mattresses. You can see exactly what goes into every mattress on our materials page.

If you're looking for a non-toxic mattress in Canada, checking for OEKO-TEX certification on the materials is one of the simplest ways to verify a brand's safety claims.

Sources

1. https://www.oeko-tex.com/en/our-standards/oeko-tex-standard-100/
2. https://www.hohenstein.us/en-us/oeko-tex/output-control/standard-100
3. https://www.compliancegate.com/oeko-tex-standard-100/
4. https://environment.ec.europa.eu/topics/chemicals/reach-regulation_en
5. https://www.cpsc.gov/Regulations-Laws--Standards/Statutes/The-Consumer-Product-Safety-Improvement-Act
6. https://www.tomsguide.com/features/what-is-oeko-tex-standard-100
7. https://www.oeko-tex.com/en/label-check/
8. https://www.oeko-tex.com/en/our-standards/oeko-tex-eco-passport/