WHAT EACH ONE TESTS — AND WHY IT TAKES MORE THAN ONE
The organic mattress category has a transparency problem. Dozens of brands use the words "organic," "natural," and "non-toxic" without a single independent certification to back them up. Others hold one certification and imply comprehensive coverage it doesn't provide. A few hold multiple certifications but don't explain what each one actually does — or doesn't — test.
This page exists to close that gap. What follows is a factual breakdown of every major third-party certification in the mattress category: what each one tests, what it doesn't, whether it applies to the finished mattress or only to individual materials, and how to verify any claim independently.
WHY ONE CERTIFICATION IS NEVER ENOUGH
No single certification is comprehensive. Each standard was designed by a different body, using a different methodology, to answer a different question. The result is that a mattress can hold one legitimate certification and still contain materials or substances the certifying body never tested for.
The most protected sleep environment is one verified by multiple independent standards simultaneously — standards that test different things, close each other's gaps, and are all independently audited and publicly verifiable.
Here is what each major standard actually does.
GOTS — Global Organic Textile Standard
What it tests: Organic supply chain integrity from farm through manufacturing. GOTS certifies the entire finished product — not just individual materials. It audits every step: raw material sourcing, processing, manufacturing, and the social and environmental practices of every facility in the chain. It explicitly prohibits polyurethane foam, memory foam, chemical flame retardants, fiberglass, and chemical adhesives in certified finished products.
What it doesn't test: GOTS does not lab-test the finished mattress for residual chemical substances. A mattress can be GOTS certified and still have substances present at levels GOTS doesn't measure — which is why OEKO-TEX and MADE SAFE exist alongside it.
Finished product or material level: Finished product. A GOTS materials certificate for cotton or latex does not mean the finished mattress is GOTS certified. Look specifically for a finished-product license.
How to verify: Search the public GOTS database at global-standard.org using the brand name or license number. A legitimate finished-product license will show the certifying body, scope, and validity period. If a brand cannot provide a license number that returns a result, the claim is unverified.
OEKO-TEX® Standard 100 — Class I
What it tests: Every component of the finished product is lab-tested against strict human-ecological thresholds for formaldehyde, phthalates, heavy metals, pesticide residues, pH levels, and dozens of other regulated and non-regulated substances. Class I is the most restrictive category within OEKO-TEX Standard 100 — designed specifically for products that come into direct contact with babies and toddlers, where the margin for chemical exposure is smallest.
What it doesn't test: OEKO-TEX Standard 100 does not certify organic supply chain integrity. A mattress can pass Class I testing and still be made with conventionally farmed materials and conventional manufacturing processes. It tests what is present in the finished product — not how it was grown or made.
Finished product or material level: Finished product — but the distinction between Class I (most restrictive, for baby/toddler products) and Class II or higher matters significantly. Class I applies stricter thresholds than the other categories.
How to verify: Use the label check tool at oeko-tex.com with the certificate number. The result will show which products are covered, the certifying institute, and the validity period.
MADE SAFE®
What it tests: MADE SAFE screens every ingredient in a product against a database of known and suspected harmful substances — including carcinogens, endocrine disruptors, neurotoxins, reproductive toxins, and environmental toxins. It uses a hazard-based approach: if an ingredient is flagged as a potential risk, it doesn't pass, regardless of exposure level assumptions.
What it doesn't test: MADE SAFE does not certify organic supply chain integrity, and it does not lab-test finished products for residual substances in the same way OEKO-TEX does. Its methodology is ingredient-screening and formula review rather than finished-product laboratory analysis.
Finished product or material level: Finished product — every ingredient in the formulation must pass the hazard screen.
How to verify: Search the MADE SAFE certified products database at madesafe.org.
EWG Verified®
What it tests: EWG Verified requires full ingredient disclosure, screens every ingredient against EWG's hazard framework, and evaluates manufacturing practices for transparency and responsibility. It prohibits ingredients flagged as potential health risks in EWG's database — including PFAS — as a condition of certification.
What it doesn't test: Like MADE SAFE, EWG Verified uses a hazard-screening approach rather than finished-product lab testing for residual substances. It does not certify organic supply chain integrity.
Finished product or material level: Finished product — full formulation disclosure is required.
How to verify: Search EWG's product database at ewg.org/ewgverified.
GREENGUARD Gold (UL GREENGUARD Gold)
What it tests: GREENGUARD Gold tests for chemical emissions into indoor air — VOCs, formaldehyde, and total chemical emissions — against strict thresholds designed specifically for environments where children and sensitive individuals are present. It also includes UL Formaldehyde-Free Claim Verification when stated.
What it doesn't test: GREENGUARD Gold does not certify organic supply chain integrity, and it does not screen for ingredient hazards in the way MADE SAFE or EWG Verified do. It focuses specifically on what the product emits into the air in the room where it's used.
Finished product or material level: Finished product — the emissions testing is conducted on the completed mattress.
How to verify: Search the UL SPOT database at spot.ul.com.
WHAT NONE OF THEM COVER ALONE
| Question | GOTS | OEKO-TEX Class I |
MADE SAFE | EWG Verified | GREENGUARD Gold |
|---|---|---|---|---|---|
| Is the organic supply chain verified? | ✓ | ✗ | ✗ | ✗ | ✗ |
| Are residual substances lab-tested? | ✗ | ✓ | ✗ | ✗ | ✗ |
| Are hazardous ingredients screened? | Partial | Partial | ✓ | ✓ | ✗ |
| Are indoor air emissions tested? | ✗ | ✗ | ✗ | ✗ | ✓ |
| Is full ingredient disclosure required? | ✗ | ✗ | ✓ | ✓ | ✗ |
| Does it apply to the finished mattress? | ✓ | ✓ | ✓ | ✓ | ✓ |
Each certification closes gaps that the others leave open. That is why the most credible organic mattresses hold multiple standards simultaneously — and why a single certification, however legitimate, should not be treated as comprehensive coverage.
HOW MAJOR BRANDS COMPARE
The following reflects each brand's publicly verifiable finished-product certifications as of 2026. Certifications that apply only at the material level — not to the finished mattress — are noted separately.
| Brand | GOTS Finished Product |
OEKO-TEX Class I Finished Product |
MADE SAFE | EWG Verified | GREENGUARD Gold |
|---|---|---|---|---|---|
| Avocado | ✓ | ✓ | ✓ | ✓ | ✓ |
| Naturepedic | ✓ | ✗ | ✓ | ✓ | ✓ |
| Birch (Helix) | ✓ | ✗ | ✗ | ✗ | ✓ |
| Saatva Latex Hybrid | ✗ | ✗ | ✗ | ✗ | ✓ |
| Saatva Classic | ✗ | ✗ | ✗ | ✗ | ✗ |
| Tempurpedic | ✗ | ✗ | ✗ | ✗ | Some models |
| Helix (core line) | ✗ | ✗ | ✗ | ✗ | ✓ |
All certifications listed are independently audited, annually renewed, and publicly verifiable using the database links in the sections above. Certifications that apply only at the material level — not to the finished mattress — are noted separately.
A NOTE ON VERIFICATION
The certifications listed above are only meaningful if they can be independently confirmed. A brand that holds a legitimate certification can provide a license number that returns a result in the relevant public database. Avocado's GOTS finished-product license is CU863637 — verifiable at global-standard.org. Avocado's OEKO-TEX Standard 100 Class I certificate is 24.HUS.86422 — verifiable at oeko-tex.com.
If a brand claims a certification but cannot provide a license number that leads to a public database record, the claim cannot be independently verified.
AVOCADO'S CERTIFICATION STACK
Every Avocado mattress — adult, crib, topper, and pillow — holds all five certifications listed on this page simultaneously: GOTS finished-product certification (CU863637), OEKO-TEX® Standard 100 Class I (24.HUS.86422), MADE SAFE®, EWG Verified®, and GREENGUARD Gold. Avocado is the first and only innerspring mattress brand in America to achieve OEKO-TEX Standard 100 Class I certification on a finished mattress across its full lineup.
Each certification is independently audited, annually renewed, and publicly verifiable. We publish our PFAS test results — 320 substances screened, none detected — in our Help Center →
View all Avocado certifications → · Why certification matters → · Shop organic mattresses →