Latex in place of memory foam
Memory foam sinks and holds heat. Ours springs back, stays cool, and the latex inside is tested to the tier set for baby products.
What latex replaces
Most pillows that promise to cradle your head are polyurethane memory foam. It softens under the warmth of your head and stays at one height, the one it was made at.
Foam sinks around your head and holds it there, and the heat stays with it. By morning you are lying in a warm dip.
Memory foam is polyurethane, made from petroleum. A new foam pillow off-gasses what it was made from, a few inches from your face.
Mass-market latex is poured on a moving line, often with synthetic latex blended in. The denser rubber settles, so the block ends up firmer on one side.
Ours is slow-pour latex from pure rubber-tree sap, shredded so you can set the height yourself.
What sits under your face
Your face rests on this latex every night, so it was tested to the limits set for a baby's bedding.
OEKO-TEX Standard 100 tests the finished material for regulated substances, including formaldehyde, heavy metals, pesticide residue and phthalates. Class 1 is the tier written for products made for babies under three. Class 2, the tier for things that touch your skin, is less strict.
The sap comes from FSC certified rubber-tree plantations in Sri Lanka. Each tree is tapped with a shallow cut in the bark that does not harm it, and it keeps giving sap for 25 to 30 years. After that it becomes rubberwood furniture.
How it feels
It holds your neck like a soft hug. The latex gives under your head, then springs back every time you turn.
Ours is poured in small batches from pure Hevea sap, with no synthetic latex blended in. A small batch cures evenly from top to bottom, so every piece in your pillow has the same bounce.
Air moves through it all night. Latex does not carry heat well, so the block is baked on hundreds of metal pins, and the pins leave open channels behind. Shredding it lets even more air through, so the pillow stays cool with no gel.
What the research found
In a trial of six pillow types with 106 side sleepers, researchers found the evidence supports latex pillows for people who wake with neck pain.
Gordon and colleagues, published 2009 and 2010
Make it yours
About a third more latex than most people keep, so you only ever take some out.
The pieces are small and scatter easily, so open the zipper over a large bag.
Stop when your head sits level. On your side, your ear sits over your shoulder. On your back, your chin stays level.
If the height feels off a few weeks in, put some back or take more out.
What buyers say
This is by far the only pillow to use if you don't want to wake up with sore shoulders or neck.
The natural latex, with all its certifications, seems a much better option.
He has really enjoyed the pillow since receiving it.
The list most pillow makers hope you never read. None of it is in a Circadian pillow.
Tap any one to see where they posted it.
Check it yourself
A certification you cannot verify is a logo. Here are ours, with the numbers and the databases they sit in.
Whole pillow, end to end
Audits the fiber farm, the scouring, the mill and the workshop. On the Organic Cotton and Organic Wool pillows and both duvets, the fill and the cover are certified, not just the cover.
Licence GOTS-10229, audited on site every yearStrictest tier, finished material
An accredited lab tests the finished material against more than 100 harmful substances, including PFAS, formaldehyde, heavy metals and pesticide residue, at the threshold used for products made for direct contact with infants.
How Standard 100 worksUpstream, at the source
The Forest Stewardship Council audits the plantations the latex is tapped from against criteria for ecosystem protection, worker safety and land rights. OEKO-TEX tests the finished latex; FSC covers where it came from.
How FSC certification worksThree of our pillows are not GOTS Certified Organic and we say so on the certifications page, along with the reason for each. Read what each certification covers
Side by side
| Question | Tree-Tapped Latex Pillow | Memory foam pillow | Solid latex block |
|---|---|---|---|
| Feel | Light, springy lift | Slow sink | Springy |
| Height | You set it through the zipper | Fixed | Fixed |
| Heat | Air moves through the pieces | Holds heat around your head | Varies |
| Safety testing | Latex tested to OEKO-TEX Standard 100 Class 1 | Varies | Varies |
From the founder
Every pillow I tried either flattened in three months or hid a list of chemicals you'd need a glossary to read, so we built one that doesn't do either.Jacob, founder of Circadian
The same hands have been making pillows in this New Jersey workshop since 1981.
A few last questions
The latex is made from pure Hevea rubber-tree sap, with no synthetic latex blended in. It is poured by the slow-pour Dunlop method and shredded into pieces.
Yes. Air moves through the shredded pieces all night, so it stays much cooler than memory foam.
No. The pillow contains natural rubber latex proteins. If you have a latex allergy, choose a different pillow and talk to your allergist. The two closest in feel have no latex in them. The Wild-Harvested Kapok Pillow is one step softer, light and cloud-like. The Organic Wool Pillow is one step firmer, soft and springy.
Up to a decade. You can add pieces through the zipper if one area settles.
Yes. Keep it fuller, so the latex fills the space between your ear and your shoulder.
Sleep on it for 60 nights. If it isn't your pillow, send it back for a full refund. Most orders arrive in 5 to 10 business days.
Not sure which fits you
Pure rubber-tree sap, poured slowly in small batches, sewn into an organic cotton cover by hand in New Jersey.
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