Most pillow brands certify the cover. We certify the whole pillow where it applies, and tell you where it doesn't.
Three independent checks tell you what's actually in our products. Here's what each one covers, what it doesn't, and where to verify it yourself.
GOTS Certified Organic
The strictest organic textile standard. Audits the fiber farm, scouring, dye process, thread, and workshop end to end.
OEKO-TEX Standard 100, Class 1
Independent lab test for 100+ harmful substances (PFAS, formaldehyde, heavy metals, pesticide residue) at the Class 1 threshold, the same one used for products designed for direct contact with infants and babies.
FSC Certified
Forest Stewardship Council certification on the rubber-tree source. Independently verifies the upstream Sri Lankan plantations are managed under responsible-forestry standards.
Why end-to-end certification matters more than a cover.
The Global Organic Textile Standard audits the entire supply chain. The fiber farm. The scouring and spinning facilities. The dye process. The thread used to sew it. The workshop where the pillow is filled and shut.
A pillow that is GOTS Certified Organic as a finished product carries that certification on every component, not just the cover. The certifying body verifies the chain through paperwork audits and unannounced site inspections.
Most pillows marketed as organic only certify the cover fabric. The fill underneath can be conventional cotton sprayed with synthetic pesticides, polyester blended in to lower cost, or chemically softened with finishing agents that don't show up on the label. The certification on the cover lets the brand use the word organic, but the pillow you put your face on every night isn't audited.
License GOTS-10229, issued by Oregon Tilth. The same number is on our scope certificate, our packaging, and the public GOTS database. Anyone can look it up.
GOTS Certified Organic, end to end, on these products:
- Organic Cotton Pillow: fill, cover, thread, and dye process all GOTS-certified.
- Organic Wool Pillow: fill, cover, thread, and dye process all GOTS-certified.
- Organic Cotton Duvet: fill, shell, thread, and dye process all GOTS-certified.
- Organic Wool Duvet: fill, shell, thread, and dye process all GOTS-certified.
For latex, Standard 100 at Class 1 is the strictest finished-material test there is.
GOTS doesn't certify latex because GOTS is a textile standard and latex isn't a textile fiber. Brands sometimes use that gap to sell natural latex without any third-party verification. OEKO-TEX Standard 100 is the credible test that closes it.
OEKO-TEX Standard 100 evaluates finished products against more than 100 regulated and unregulated chemical compounds. The list includes PFAS and other forever chemicals, formaldehyde, heavy metals, pesticide residue, phthalates, carcinogenic dyes, and chlorinated phenols.
Inside the Standard 100 program there are four tiers (Class 1 through Class 4). Class 1 is the strictest, tested to the same safety threshold as products designed for direct contact with infants and babies. Class 4 is the most permissive, used for products that don't touch skin. The latex in the Circadian Tree-Tapped Latex Pillow is certified at Class 1, which is the tier most other natural latex pillows on the market do not reach.
Certification is issued only after the finished product passes laboratory testing at an accredited OEKO-TEX laboratory. The testing covers the latex pieces, the cover, the thread, and any zipper or hardware.
The OEKO-TEX seal on our latex pillow is Class 1, the strictest tier. An independent lab verified there is no PFAS, no formaldehyde, no heavy metal residue, and no carcinogenic dye in the finished product at the infant-skin-contact safety threshold.
OEKO-TEX Standard 100, Class 1 on this product:
- Tree-Tapped Latex Pillow: slow-pour Dunlop natural latex pieces, tested and certified at Class 1.
For latex, the upstream rubber-tree source matters too.
OEKO-TEX tests the finished latex for harmful substances. FSC certifies the forestry practices on the trees the latex comes from. Together they cover both ends of the supply chain.
FSC is the Forest Stewardship Council, the most widely recognized responsible-forestry standard in the world. An FSC certified rubber-tree plantation is independently audited against criteria for ecosystem protection, worker safety, indigenous land rights, and long-term forest stewardship. The rubber trees that supply the latex in the Tree-Tapped Latex Pillow grow on FSC certified plantations in Sri Lanka.
Most natural latex pillows on the market can claim OEKO-TEX Standard 100 on the finished product but cannot claim FSC on the upstream rubber-tree source. The two certifications together are uncommon and they cover different things, which is why we list both.
FSC on the rubber-tree source means the latex sap was tapped under independently verified responsible-forestry standards, not from clear-cut or unmanaged plantations.
FSC certified rubber-tree source on this product:
- Tree-Tapped Latex Pillow: FSC certified Hevea brasiliensis plantations in Sri Lanka.
How Circadian's certifications stack up.
A read of what most natural-bedding brands actually certify versus what we certify. Most differences come down to cover-only versus end-to-end, and Class 2 or Class 3 versus Class 1.
| Circadian | Typical "organic" pillow brand | |
|---|---|---|
| Cover fabric certified | Yes (GOTS) | Usually yes |
| Fill certified | Yes (GOTS, on cotton + wool products) | Usually no |
| Thread certified | Yes (GOTS organic cotton thread) | Usually polyester, not certified |
| Dye process certified | Yes (GOTS) | Rarely |
| Workshop GOTS-certified | Yes (GOTS-10229) | Varies |
| License number publicly searchable | Yes, GOTS-10229 in Oregon Tilth database | Often opaque or not disclosed |
| Latex finished material tested | Yes (OEKO-TEX Standard 100, Class 1) | Sometimes (Class 2 or 3, rarely Class 1) |
| Latex rubber-tree source certified | Yes (FSC certified plantations) | Rarely |
| Honest about non-certified products | Yes (see below) | Rarely |
Comparison reflects typical natural-pillow brands. Individual competitors vary. We list what's publicly verifiable on our certificates and supplier records.
Three of our pillows aren't GOTS Certified Organic. We don't pretend they are.
Some natural materials sit outside the certification system. Here's the honest reason for each.
Wild-Harvested Kapok
Kapok is wild-harvested from Ceiba pentandra trees in tropical rainforest regions. The pods shed seasonally and drop from the trees on their own; workers collect them by hand. Because the trees aren't cultivated and there's no farming step, organic certification (which audits cultivation practices, soil management, pesticide use, and crop rotation) doesn't apply to kapok. The organic cotton cover is GOTS-certified. The kapok fiber itself is wild, unprocessed, and untreated, but the certification system has no category for it.
Buckwheat
The buckwheat hulls are USA-grown without synthetic pesticides, pre-polished, air-jet cleaned, and UV-sterilized. The hulls are a byproduct of buckwheat flour milling, not a primary crop, so GOTS doesn't certify them. The organic cotton cover is certified. The hulls themselves are not.
Buckwool Hybrid
The Buckwool Hybrid combines a buckwheat side and an organic wool side. The wool fill is GOTS-certified organic. The organic cotton cover is GOTS-certified. The buckwheat hulls aren't eligible for the same reason as the standalone buckwheat. So this pillow is partly GOTS-certified, and we describe it that way, not as a GOTS Certified Organic pillow.
Certifications get you a safe product. The trial gets you the right one.
Certifications confirm what a product contains and how it was made. They don't confirm comfort, durability, or fit for your sleep position.
A GOTS Certified Organic pillow can still be the wrong loft for your body. Wool can still be too warm for a sleeper who runs cold. Buckwheat can still be too firm for a stomach sleeper. The certifications keep the chemistry honest. The 60-night trial keeps the comfort honest.
Sleep on something that's been audited end to end.
Six pillows, two duvets, one workshop in New Jersey. Take the two-minute quiz if you're not sure where to start.
Take the 2-Minute Quiz →