Soft, springy latex from living rubber trees, tested to the strictest OEKO-TEX tier, the one for baby products.
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60-Night Trial
You have 60 nights to sleep on it, take pieces out, add them back, and settle on your height in the first week. If it turns out not to be the right pillow for you, send it back for a full refund. There is no restocking fee and no explanation needed.
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Free shipping. Latex is unfamiliar to most people, and the only way to evaluate it is to sleep on it for real. We'd rather pay for shipping than have you wonder.
The latex starts as sap from Hevea brasiliensis rubber trees, harvested through shallow downward cuts in the bark, similar to tapping maple trees. The sap is processed using the slow-pour Dunlop method: the latex is whipped to a froth, then poured slowly into the mold so air settles out between layers, giving a denser, more uniform foam than mass-market Dunlop. The block steam-cures into an open-cell foam, then we break it into pieces, which is what gives the pillow its adjustability and continuous airflow between fragments. The fill carries OEKO-TEX Standard 100, Class 1 certification (the strictest tier), and the rubber-tree source is FSC certified.
The slow-pour Dunlop latex inside is broken into small pieces that are easy to work with. Unzip the short end, scoop pieces out over a wide surface if you want a softer or lower pillow, or add them back when you want more height. Each handful changes the feel by a noticeable amount. The whole adjustment takes about three minutes. Solid latex blocks ship at one fixed firmness. This one adjusts to your neck.
Each pillow is filled by hand because the amount of slow-pour Dunlop latex needs to be precise. Too much and the pillow ships too tall to fit most necks. Too little and it lacks the support that makes natural latex comfortable. Our team fills, weighs, and checks each one before sealing it.
Slow-pour Dunlop latex has an open-cell structure that lets air move through the pieces continuously, the way it moves through a sponge. Heat does not build up against your skin. The smaller latex pieces inside the cover leave air gaps between them that carry heat away as you sleep, so the surface stays cool through the night. Air moving through the pieces is what keeps it cool, rather than a gel layer or a phase-change panel.
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60 nights to sleep on it, and a full refund if it isn't right.
Made by hand for you in New Jersey. Ships in 4 to 7 business days.
The latex inside is certified to OEKO-TEX Standard 100 at Class 1, the strictest tier, the one used for baby products. It is tested for over 1,000 harmful substances, PFAS and formaldehyde among them, and it is naturally hypoallergenic.
Shredded latex squishes a little under your head and springs back when you move. Your head never ends up in a hole.
Air moves through the pinholes in the latex and the gaps between the pieces all night. The pillow stays cool on its own, with no cooling layer to wear out.
Memory foam sinks. Your head presses in, the foam gives way under it, and you spend the night in a warm dent shaped like where you started. Latex does the opposite. It gives at the surface and pushes back underneath, so the pillow holds your head rather than closing around it. The height you had lying down is the height you wake up with.
The other difference is the material. Memory foam is a petroleum foam, and it gives off more fumes as your head warms it, a few inches from your face for eight hours a night. This one is sap, tapped from a living rubber tree in Sri Lanka through a shallow cut in the bark that leaves the tree growing. The tree is Hevea brasiliensis. The sap is slow-pour Dunlop, set in small batches so the block cures evenly top to bottom, with no synthetic latex blended in.
It stays cool on its own. Air moves through the open structure of the latex, not through a gel layer that fades after a season.
It arrives full, with about 30% more latex than most people keep, so you can shape it to your own neck. Open the zipper on the short end and take some out for a lower, softer profile. Work it back in when the neck wants more height. It suits side, back and combination sleepers, and it runs cool for people who sleep hot.
The latex carries OEKO-TEX Standard 100 at Class 1. That is the strictest tier in the program, the same limits set for products made for babies. It tests the material for more than a thousand harmful substances, including formaldehyde, heavy metals and phthalates. The rubber tree source is Forest Stewardship Council (FSC) certified. The cover is organic cotton. It is made by hand in New Jersey.
One thing to know before you buy: this pillow contains natural rubber latex proteins. If you have a diagnosed latex allergy, choose the organic cotton, wild-harvested kapok or organic wool instead, and talk to your allergist.
Want to see how the latex is tapped and tested? Watch what slow-pour Dunlop latex is, and why it is safe, with the full transcript.
Wondering whether natural pillows off-gas? Read whether natural pillows are non-toxic, and what off-gassing really means, including what Class 1 testing covers.
Researchers have gone looking for the right pillow height and not found one. A 2021 review in Healthcare pulled together the studies on how height gets chosen and reported no optimum for back or side sleeping. It also found that the height which works for a person does not track the measurements of their head or their neck. So there is no number anyone can calculate for you, and a sealed pillow that arrives at one height has guessed.
Open the zipper. Take some out, sleep on it, put some back. Your neck answers the question that the measuring tape cannot. Ergonomic consideration in pillow height determinants and evaluation, Healthcare (Basel), 2021.
Allergic to latex? A latex allergy reacts to the rubber protein in all latex of this kind, so see the latex-free natural pillows that are safe for a latex allergy: organic cotton, wild-harvested kapok, and organic wool.
I have owned more pillows than I have owned houses and I have owned 12 houses. … This is by far the only pillow to use if you don’t want to wake up with sore shoulders or neck. I have replaced all the pillows in my house with this pillow.
I bought this after my doc reminded me that memory foam, as comfortable as it is, may do some offgassing, and that’s not something I want going into my breath holes. The natural latex, with all its certifications, seems a much better option.
I bought this pillow for my husband to improve his quality of sleep and avoid harmful chemicals sometimes found in typical pillows. He has really enjoyed the pillow since receiving it.
From people who sleep on it
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Most pillows labeled 'latex' are synthetic latex. That is petroleum-based foam that off-gasses volatile compounds and traps heat. Our latex is slow-pour Dunlop, tapped from Hevea brasiliensis rubber trees the way maple syrup is tapped. The sap is whipped, then poured slowly into the mold so air settles out between layers, giving a denser, more uniform foam than mass-market Dunlop. The block bakes until the open-cell structure sets. We break the latex into smaller pieces so the loft adjusts and air moves through the gaps between them. OEKO-TEX Standard 100, Class 1 means the finished latex has been tested for more than 1,000 harmful substances, the same standard applied to products made for direct infant skin contact. The cover is organic cotton.
| Size | Dimensions | Weight |
|---|---|---|
| Standard | 20" × 26" | About 4.25 lb |
| Travel | 12" × 16" | About 1.5 lb |
| Queen | 20" × 30" | About 5.25 lb |
| King | 20" × 36" | About 6.8 lb |
Most pillows come at one fixed height, so you sleep at a height that was never set for your body, and your neck and shoulders pay for it in the morning. Every Circadian pillow arrives full instead. You set the height on night one, take a little more out over the trial, and the pillow you've shaped is yours to keep.
Side sleepers
The latex pieces lift your head and spring back, so the height a side sleeper needs stays put all night.
Back sleepers
Take a few handfuls of pieces out through the zipper until your chin sits level. The latex still holds your neck like a soft hug.
Stomach sleepers
Take out about half and it settles low with a soft lift, so your head sits close to level with the mattress.
Keep the pieces you take out in a bag, and put them back any night you want more height.
About 30% more inside than most people keep, so you can shape it to your own neck.
If the height feels off a few weeks in, put some back or take more out.
Not for you after 60 nights? Full refund, and no restocking fee.
Refill latex sold separately if you want to bring the height back up after years of use.
Inside the pillow
Slow-pour Dunlop latex begins as sap from Hevea brasiliensis rubber trees. A shallow downward cut in the bark opens the vessel network, the sap collects, and the tree heals to be tapped year after year for decades. Maple syrup harvesters work the same way.
The pieces push back and spring up, so your head stays at the height you set instead of sinking.
Open cells, plus the gaps between the pieces, let heat escape, so the surface stays cool without a gel.
The sap is tapped from rubber trees that keep growing for decades. The latex inside is certified to OEKO-TEX Standard 100 at Class 1, tested for over 1,000 harmful substances.
The sap is whipped to a froth, then poured slowly into the mold so air settles out between layers, giving a denser, more uniform foam than mass-market Dunlop.
Under your head, slow-pour Dunlop holds its height and its shape without sinking. The open-cell structure lets air move through the fill continuously, keeping the surface cool through the night. We break the latex into smaller pieces and put them inside an organic cotton cover so you can adjust the fill to your neck and your sleep position. A solid block of latex would lock you into whatever firmness arrived in the box. The slow pour is what separates the foam in this pillow from the mass-market Dunlop in cheaper latex pillows, which traps voids and runs uneven across the block.
I spend as much time outside as I can. I wanted my eight hours in bed to be just as clean. Most pillows are foam and polyester, so I made one from plants and wool instead. You open it and set the height to fit your neck. Every pillow is sewn by hand in New Jersey and filled to order.
See my sleep data| Six pillows |
Cotton |
Buckwheat |
Buckwool |
Wool |
Kapok |
Latex |
|---|---|---|---|---|---|---|
| FeelDots show soft to firm | Medium-firm | Firmest | Buckwheat sideWool side | Medium-soft | Softest | Soft and bouncy |
| Best for | Side and back sleepers | Neck pain, hot sleepers | Firm some nights, soft on others | Allergies, hot sleepers | Stomach and back sleepers | Leaving memory foam |
| Temperature | Even temperature | Coolest of the six | Stays cool | Stays cool | Stays cool | Stays cool |
| Set the height | Take cotton out, a little at a time | Pour hulls out or back in | Each side adjusts on its own | Lift a layer of wool off the outside | Take kapok out with the zipper barely open | Take latex pieces out, a few at a time |
| Where it grows | Texas | USA | USA hulls, New Zealand wool | New Zealand | Indonesia | Sri Lanka |
| Wash | Empty the cover, then machine wash it cold and air dry. Sponge small marks with cool water. The material inside stays dry. | |||||
| CertifiedGOTS is the Global Organic Textile Standard | GOTS Certified Organic, inside and out | Organic cover, patented polished USA hulls | Organic wool side, organic cotton cover | GOTS Certified Organic, inside and out | Wild-harvested, never cut down | OEKO-TEX Standard 100 Class 1 latex |
| Price | From $89View the Organic Cotton Pillow | From $89View the Buckwheat Pillow | From $99View the Buckwool Hybrid Pillow | From $99View the Organic Wool Pillow | From $79View the Wild-Harvested Kapok Pillow | From $89View the Tree-Tapped Latex Pillow |
No, a diagnosed latex allergy rules out every latex pillow, ours included, because the proteins that cause it are part of natural rubber itself. For everyone else, the latex inside is certified to OEKO-TEX Standard 100 at Class 1. That is the strictest tier, the one used for baby products, and it tests for more than 1,000 harmful substances. If you react to latex, the Organic Wool Pillow is the closest feel to it. Wool is springy, light and cool, and there is no rubber in it.
Natural latex and memory foam differ in heat, responsiveness, and adjustability. Memory foam traps heat because of its closed-cell structure. Slow-pour Dunlop latex pieces allow air to flow through their open cells, staying cool. Latex also bounces back faster, so your head doesn't get locked in a single impression. And because the Circadian latex pillow uses slow-pour Dunlop pieces rather than a single block, you can set the height yourself, something solid memory foam cannot offer.
Yes. Slow-pour Dunlop latex pieces are one of the better pillow options for hot sleepers because air circulates through the open-cell structure between the pieces. The pillow runs cool through the night. Among the Circadian collection, it's cooler than cotton and comparable to wool, though not quite as cool as buckwheat.
Yes. Slow-pour Dunlop latex pieces can be added or removed through a zipper, unlike solid latex blocks that come in a fixed size and firmness. The Circadian Tree-Tapped Latex pillow arrives full, with about 30% more pieces inside than most people keep, so you can shape its height and softness to your own neck.
Yes. Side sleepers typically need more latex for a taller pillow that supports the head at shoulder height. Keep the slow-pour Dunlop latex pieces relatively full for side sleeping. Latex cushions the ear and cheek while holding the neck up, which is what side sleepers need.
A slow-pour Dunlop latex pillow with adjustable pieces is a natural option for people leaving memory foam. The open-cell slow-pour Dunlop structure breathes and bounces back when you move. You set the height yourself through the zipper on the short end, which a solid memory foam block cannot do.
Slow-pour Dunlop natural latex is one of the most durable pillow fills available, lasting up to a decade with normal use. Latex resists compression and breakdown better than cotton, wool, or synthetic foam. The zipper on the short end extends the useful life further, because you can redistribute the pieces or add more if one area settles.
Slow-pour Dunlop latex lasts up to a decade with normal use, the longest of any fill in the Circadian lineup. The dense, even cell structure of a slow-pour cure resists compression and breakdown, and because the latex is in pieces, you can redistribute them or add more through the zipper on the short end if one area ever settles.
It is slow-pour Dunlop latex, made from 100 percent Hevea rubber-tree sap with no synthetic blend. Slow-pour, small-batch curing gives an even, springy block from top to bottom. The finished latex carries OEKO-TEX Standard 100 Class 1, the strictest tier, plus FSC certification on the rubber-tree source.
Dunlop latex is whipped, poured into a mold, and steam-cured into a dense, springy, open-cell material. Mass-market Dunlop pours fast, which traps air voids and leaves the block uneven. The Circadian Tree-Tapped Latex Pillow uses slow-pour Dunlop, where the sap pours slowly so air settles out between layers, giving a denser, more uniform foam that holds up for years. We shred that cured block into pieces, so the pillow keeps the bouncy responsiveness of natural latex with the adjustability of an open chamber.
OEKO-TEX Standard 100, Class 1 certification means the latex fill has been independently tested for more than 1,000 harmful substances, including carcinogenic dyes, pesticide residue, heavy metals, formaldehyde, and phthalates. Class 1 is the strictest tier, the same standard applied to products made for direct infant skin contact. Many latex pillows on the market are not third-party tested, so the certification provides verified safety rather than brand claims alone.
OEKO-TEX Standard 100, Class 1 means the latex fill inside the Circadian Tree-Tapped Latex Pillow has been independently tested for more than 1,000 harmful substances, including heavy metals, formaldehyde, pesticide residues, and phthalates. Class 1 is the strictest tier of the standard, the same level required for products that touch infant skin, and the latex earns it as 100% Hevea brasiliensis tree sap made through a slow-pour small-batch Dunlop process.
Our slow-pour Dunlop latex is made from the sap of Hevea brasiliensis rubber trees on FSC-certified plantations in Sri Lanka, where Asia's rubber industry began in 1876. The sap is collected through small cuts in the bark, the way maple syrup is, and the finished latex is certified to OEKO-TEX Standard 100, Class 1, the tier set for baby products.
The Circadian Tree-Tapped Latex Pillow is 100% Hevea brasiliensis tree sap made through a slow-pour small-batch Dunlop process, with an FSC-certified rubber-tree source in Sri Lanka and OEKO-TEX Standard 100, Class 1 certification on the finished latex (the strictest tier, the same level required for infant-skin contact). It arrives full in an organic cotton cover with a zipper on the short end, so you take pieces out to set the height for your sleep position.
If you have a diagnosed latex allergy, choose the Organic Wool Pillow or the Wild-Harvested Kapok Pillow. Wool keeps the air at your face too dry for dust mites, and kapok is a hollow plant fiber that reaches the pillow without a chemical stage. The Organic Cotton Pillow is a third choice if you would rather have a familiar feel and no animal fiber. Latex allergy is triggered by proteins in Hevea brasiliensis that stay in the material after processing, so the Tree-Tapped Latex Pillow is a hard no.
The 60 nights start on December 25 for gift orders placed November 1 to December 24, 2026, not on the day the box arrives. That way the person who opens it on Christmas morning gets the whole trial. Tick "This is a gift" in the cart before you check out, and their last trial night is February 22, 2027. If it is not right, email jacob@circadianrest.com and we will set up the return.
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