Bought it for the wool side
Was going to buy the wool pillow but the hybrid was the same price with a backup side. Six months in I sleep on wool every night. Glad I have the option but never need it.
Two adjustable chambers in one pillow: pre-polished USA-grown buckwheat hulls on one side for firm neck support, New Zealand wool on the other for a softer, drier night.
Handmade in our New Jersey workshop since 1981.
Most people find their side within the first week: firm buckwheat on the nights your neck needs holding, soft wool on the nights it does not. Sleep on it for 60 nights, and if it is not for you, send it back for a full refund.
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Free shipping. Most orders arrive in 4 to 7 days. Two feels in one pillow is something you judge in your own bed, so we cover the shipping and give you 60 nights to decide.
Two Adjustable Chambers: Wool and Buckwheat
One side is organic wool, soft and dry against your face. The other is USA-grown buckwheat hulls, firm and cool, holding whatever shape you press into them. An internal fabric divider keeps the two apart, so the sides never mix.
There is a single zipper that opens the entire pillow. Inside, a reinforced fabric divider separates the wool from the buckwheat hulls. You can reach into either chamber and set that side on its own. Adding wool to the wool side does not change the buckwheat side, and vice versa. In practice you own two adjustable pillows that share one cover.
Each Buckwool is made and sewn by hand in a New Jersey workshop that has been making pillows since 1981, to a spec we set ourselves. The divider has to sit square and be reinforced before the hulls and the wool go in, or the two chambers stop working on their own, so the team fills, weighs and balances each pillow before closing it.
The buckwheat side gives you firm, cool support that holds your neck where you set it. The wool side gives you softer support that moves with your body and keeps the air at your face dry. You do not have to decide which kind of sleeper you are, or which problem matters most. You can switch by how you feel that night.
Some nights your neck needs holding. Other nights you want something soft under your cheek and nothing more. Most people buy one pillow and live with it being wrong half the time. This one is firm buckwheat on one side and soft organic wool on the other, and you choose by turning it over.
The buckwheat side is the firmest support we make. The hulls flex under the weight of your head, lock against each other, and hold the neck in line until you move. Nothing sinks as the night goes on. It is the side people reach for when the neck needs holding.
The wool side is soft, it makes no sound, and it keeps you cool on its own. Warm damp air is what makes a pillow feel hot against your face. Wool pulls that damp out of the air and holds it inside the fiber, up to 30 percent of its own weight, then lets it go again. The heat leaves with it. What is left against your cheek is dry air, and dry air is what feels cool. It also stays too dry for dust mites to settle in.
Inside one cover are two chambers side by side, with a cotton divider between them. A single zipper opens both. Take hulls out until the firm side sits where your neck wants it, then work wool in until the soft side matches. Turn the pillow over whenever you want the other one.
The hulls are grown on farms in the United States and are never roasted. A patented air-jet process breaks them into flatter, single-sided pieces, which cuts the sound by up to 68 percent. The wool comes from certified organic farms in New Zealand that move their flocks between pastures rather than grazing one field down. An organic wool side, a natural buckwheat side, an organic cotton cover. The same hands have been making these in a New Jersey workshop since 1981.
It weighs about 10 pounds, because it carries a full measure of both. That is the heaviest thing we make. The weight keeps it planted on the bed, and it is also why this one does not travel well.
Give it 3 to 5 years on the wool side. The buckwheat side refreshes with a few handfuls of new hulls whenever it loses spring, so the pillow keeps going.
One thing to know before you buy: buckwheat hulls are a documented respiratory allergen. If you have a known buckwheat allergy, choose the organic cotton, wild-harvested kapok or organic wool instead.
Want to see how the two sides work together? Watch what a buckwool hybrid pillow is and who it's for, a full conversation on the firm buckwheat side, the soft silent wool side, and adjusting each chamber on its own, with the complete transcript.
Deciding between the materials? Compare all six side by side in our natural pillow fill comparison, with feel, cooling, certification, and lifespan for cotton, wool, buckwheat, kapok, latex, and the buckwool hybrid.
Looking at natural pillows with neck pain in mind? See our guide to natural pillows for asthma and neck pain, which covers how the firm buckwheat side holds the neck in line.
Some nights my neck is locked up and I need firm support. Other nights I just want something soft. Used to keep two pillows on the bed and swap. Now I flip one pillow. The lazy person's two-pillow setup.
Was going to buy the wool pillow but the hybrid was the same price with a backup side. Six months in I sleep on wool every night. Glad I have the option but never need it.
This thing weighs ten pounds. Doesn't move around. Doesn't pack down. Probably the most stable pillow I've owned.
Tap any one to see where they posted it.
Inside the pillow
The buckwool combines two natural fills in one pillow, kept separate by an internal cotton divider. One side firm and cool. The other side soft and temperature-regulating.
Each chamber is independently adjustable through a single zipper that opens both sides at once.
The wool chamber holds organic wool, naturally wavy and springy, wicking up to 30 percent of its weight in moisture while staying dry on the surface. The buckwheat chamber holds pre-polished USA-grown hulls that flex and interlock under your head for firm neck support. Our proprietary polishing process reduces rustle by up to 68 percent compared to standard hulls. The internal divider is reinforced organic cotton fabric sewn into the pillow's interior, so when you add or remove fill from one chamber, the other chamber stays exactly as you set it. Most people find a favorite side within the first week.
You do not sleep in one position. You start on your side, roll to your back, and a firm night is not a soft night. A single fill can only give one answer: firm enough for your side, and your back aches on it. Soft enough for your back, and your side sinks.
So most people pick the lesser-wrong pillow and quietly live with it, or keep two on the bed and swap. The problem is asking one fill to be two things. Buckwool stops asking.
Pre-polished USA-grown hulls mold and lock to your neck for the nights you need real support, and stay cool doing it.
Organic wool for the nights you want plush, quiet, and hypoallergenic, wicking moisture so you stay cool.
Set each chamber to the height you want, then turn to the side the night calls for. One pillow does the work of two, and you never swap anything out.
Two independent sides mean the right pillow every single night, firm when your neck needs holding, soft when it does not, without owning two pillows or settling for one. Handmade in New Jersey, both fills at once.
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.
About 30% more inside than most people keep, because it is easier to take some out than to wish you had more.
Full-length YKK zipper. Open the buckwool hybrid on night one.
Side sleepers keep more in. Back sleepers go medium. Stomach sleepers go thin.
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 buckwool hybrid sold separately if you want to bring the height back up after years of use.
I'm Jacob, founder of Circadian. 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, Circadian
Spine alignment · Buckwool Hybrid
Your spine stays neutral when the pillow fills the gap between head and mattress. That gap is different for back, side, and stomach sleepers.
Buckwool works for every sleep position because each side does a different job. The buckwheat side gives firm cervical support for back and side sleepers. The wool side is softer, and you set its height for stomach sleeping. Each chamber adjusts independently through the side zipper.
A high pillow tips your head back and overextends your neck. Most stomach sleepers want a very low pillow, or none.
Press the buckwool hybrid flat so your head and shoulders sit close to level with the mattress.
Supports the natural curve of your neck so your chin sits level and the small space behind your neck is filled in.
Mold the buckwool hybrid until your head sits level with your shoulders.
Fills the gap between shoulder and ear so your spine runs in a single horizontal line from skull to hip.
Mold the buckwool hybrid until your ear, shoulder, and hip stack along one straight line.
Six fills. All adjustable. All handmade in New Jersey.

Best for: neck pain, combination sleepers.
Two pillows in one. Firm buckwheat and soft wool, each side adjustable on its own.
View pillow
Best for: back sleepers, GOTS-certified organic everything.
Our most tightly packed fiber fill. Holds its shape for years, GOTS-certified organic end to end.
View pillow
Best for: hot sleepers, dust allergies.
Wicks up to 30% of its weight in moisture. Naturally regulates temperature and holds the air too dry for dust mites.
View pillow
Best for: neck pain, side sleepers.
Hulls flex and lock to your neck shape. Stays cool all night, and most people get three to five years from a hull load before refreshing.
View pillow
Best for: chemical sensitivities, vegans, stomach sleepers.
Plant-based and down-like. Hollow fibers are 80 to 90% air, so it stays cool and fluffs up like down.
View pillow
Best for: people leaving memory foam.
Slow-pour Dunlop with an open-cell structure that breathes. Light, bouncy, and responsive, it springs back instead of sinking.
View pillowWe bought every one of them
6 buckwool pillows, bought and slept on. Every cell below is that brand's own published wording.
| Pillow | Price | How it was made | What the certificate covers | Can you change it | Trial and returns |
|---|---|---|---|---|---|
| Circadian Buckwool Hybrid PillowNew Jersey, handmade since 1981 | $199~10 lbs total · $19.90/lb | Hulls air-jet polished and UV-sterilised. Wool scoured with biodegradable detergent, lanolin retained, left undyed. | Organic wool side, organic cotton coverOrganic wool on one side and an organic cotton cover. Buckwheat hulls are an agricultural byproduct, so no organic standard covers them. | A separate zipper per sideBoth fills sold separately, so you can top it up | 60 nightsFree shipping |
|
What the certificate covers
Organic wool on one side and an organic cotton cover. Buckwheat hulls are an agricultural byproduct, so no organic standard covers them. How it was made
Hulls air-jet polished and UV-sterilised. Wool scoured with biodegradable detergent, lanolin retained, left undyed. What we do not claim
We do not claim GOTS on this pillow and we do not call it an organic pillow. The wool side and the cover are certified; the hulls are not, and a pillow is only as certified as its least certified part. | |||||
| Turmerry Hybrid Wool & BuckwheatAssembled USA | $139~4 lbs (buckwheat side) · $34.75/lb | Buckwheat sustainably grown pesticide-free; wool naturally crimped; undyed implied | Claimed, no number published | Yes (dual zippers)Yes (extra hulls sold) | 120 nightsFree USFree US |
|
Certification, their words: GOTS-certified component only (cotton cover); wool described as natural NZ wool (GOTS not explicit); buckwheat outside GOTS scope; license # not published Processing, their words: Buckwheat sustainably grown pesticide-free; wool naturally crimped; undyed implied | |||||
| Comfort Pure Wool+BuckwheatHandcrafted USA | $197.96 | Not disclosed | Claimed, no number published | Yes (zippered)Not specifically offered | 30 nights30 days w/ restockingFree to most US locations |
|
Certification, their words: Bare 100% certified organic materials claim; certified organic wool claimed; GOTS not explicit; no license #s Processing, their words: Not disclosed | |||||
| The Futon Shop Wool+BuckwheatHandmade San Francisco | $130 | Virgin wool fiber; specifics not disclosed | Claimed, no number published | Yes (zippered chamber)Not specifically offered | Policy not on PDPRestocking applies via resellersNot free |
|
Certification, their words: GOTS at supplier-input level only (supplier scope certs for cotton and wool, Goetz & Sons; cover fabric, Carr Textile); no GOTS license held by the brand; certified organic buckwheat claim unverified (outside GOTS scope) Processing, their words: Virgin wool fiber; specifics not disclosed | |||||
| Sachi Rejuvenation (70/30 split)Handmade Albuquerque/Edmonds | $109 | Not disclosed | Claimed, no number published | Yes (single zipper)Not explicitly offered | Standard return policyPer Soaring HeartNot specified as free |
|
Certification, their words: Organic cotton sateen cover (GOTS not explicit); World Class Wool / Eco-Wool batting not certified organic; no organic claim on the buckwheat; no license #s Processing, their words: Not disclosed | |||||
| Rawganique Outer Banks ReversibleHandmade USA since 1997 | $164.957 lbs · $23.56/lb | Not disclosed | No third-party certification | Optional ($8 upcharge for zip)Not specifically offered | Non-returnableNo returnsNot stated on PDP |
|
Certification, their words: Fiber-level certified organic only; brand states its own sewing workshop is not certified; GOTS not explicit; no license #s; PFAS-free is self-declared Processing, their words: Not disclosed | |||||
Sorting reorders the other pillows. Ours stays on the top row.
None of the other buckwool pillows we bought meet that one.
Green means the brand's own published wording meets the test, amber means it is claimed but not evidenced, grey means it does not. Open any row to read the wording it was graded on. Certifications re-checked live on 31 July 2026. Prices and policies collected May 2026 from each brand's product page; certifications re-verified 31 July 2026. How we test and rank
The list most pillow makers hope you never read. None of it is in a Circadian pillow.
Checked by someone else.
Most hybrid pillows mix two fills together so you cannot adjust them separately. Cheaper hybrids use polyester batting as the internal divider, which puts microplastic between you and the natural fills. We use an organic cotton fabric divider sewn into the pillow's interior, then put pre-polished USA-grown buckwheat hulls in one chamber and organic wool in the other. The wool side is the same wool we use in our standalone wool pillow. The buckwheat side is the same pre-polished hulls we use in our standalone buckwheat pillow. One zipper opens both sides, and each chamber adjusts independently.
A buckwool hybrid pillow combines two fills in one pillow: firm buckwheat hulls on one side and soft organic wool on the other. The Circadian buckwool hybrid uses an internal fabric divider to keep the two materials separate, with a single zipper that gives you access to both chambers. You choose which side to sleep on based on your comfort needs each night.
Yes. The pillow has one zipper and an internal fabric divider. When you unzip it, you can reach into the wool chamber or the buckwheat chamber on its own. Adding or removing wool does not change the buckwheat side. Each side keeps its own height and firmness.
The buckwheat side is cooler. Air circulates freely between the buckwheat hulls, which keeps the surface from trapping heat. The wool side regulates temperature through moisture wicking rather than airflow, so it's cooler than memory foam or synthetic materials but warmer than buckwheat.
Yes, especially for people whose neck pain comes and goes. On the nights your neck needs firm, stable support, the buckwheat side holds your head in place without compressing. On the nights it feels better, the wool side gives softer cushioning and keeps the air at your face dry.
The Circadian buckwool hybrid weighs approximately 10 pounds, making it the heaviest pillow in the collection. The weight comes from combining buckwheat hulls (naturally heavy) with wool in a single pillow. This keeps the pillow stable on your bed, but it's not practical for travel.
Yes. The buckwheat side rustles the way a standalone buckwheat pillow does, a soft shifting sound when you move your head. If that bothers you, flip to the wool side, which is silent.
The wool inside and the organic cotton cover are certified to the Global Organic Textile Standard (GOTS), license GOTS-10229, issued by Oregon Tilth. The buckwheat hulls are a USA-grown agricultural product, cleaned and polished rather than treated, and hulls carry no organic certification of their own. That is why we call the wool side organic and stop short of calling the whole pillow organic.
The buckwool hybrid is best for people who need different support on different nights, particularly people whose neck or back pain comes and goes. Side sleepers can use the firmer buckwheat side for neck support. Back sleepers often prefer the softer wool side.
No. It's a single pillow with one cover and one zipper. Inside, a reinforced fabric divider creates two chambers, one for wool and one for buckwheat. The fills don't mix, but the pillow is one unified product. You flip the entire pillow to switch between sides.
That's fine and it happens frequently. Some people buy the hybrid specifically for the buckwheat side and never sleep on the wool side. Others do the opposite. If you find yourself exclusively using one side, the hybrid still works as a pillow. But if you know from the start that you only want one material, a dedicated single-fill pillow might be a better value.
The hybrid is more convenient, because you flip one pillow instead of swapping between two. It also costs less than buying a buckwheat pillow and a wool pillow separately. The trade-off is weight, about 10 pounds against two lighter pillows, and each side holds a little less than its standalone counterpart.
The Circadian Buckwool Hybrid is a flippable two-in-one pillow with pre-polished buckwheat hulls on one side for firm, cool, shape-holding support and organic wool on the other for a softer, moisture-wicking traditional feel. A chamber system keeps the two fills fully separated so they don't mix.
A buckwool hybrid pillow combines two fills in one pillow: firm buckwheat hulls on one side and soft organic wool on the other. The Circadian buckwool hybrid uses an internal fabric divider to keep the two materials separate, with a single zipper that gives you access to both chambers. You choose which side to sleep on based on your comfort needs each night.
Yes. The pillow has one zipper and an internal fabric divider. When you unzip it, you can reach into the wool chamber or the buckwheat chamber on its own. Adding or removing wool does not change the buckwheat side. Each side keeps its own height and firmness.
The buckwheat side is cooler. Air circulates freely between the buckwheat hulls, which keeps the surface from trapping heat. The wool side regulates temperature through moisture wicking rather than airflow, so it's cooler than memory foam or synthetic materials but warmer than buckwheat.
Yes, especially for people whose neck pain comes and goes. On the nights your neck needs firm, stable support, the buckwheat side holds your head in place without compressing. On the nights it feels better, the wool side gives softer cushioning and keeps the air at your face dry.
The Circadian buckwool hybrid weighs approximately 10 pounds, making it the heaviest pillow in the collection. The weight comes from combining buckwheat hulls (naturally heavy) with wool in a single pillow. This keeps the pillow stable on your bed, but it's not practical for travel.
Yes. The buckwheat side rustles the way a standalone buckwheat pillow does, a soft shifting sound when you move your head. If that bothers you, flip to the wool side, which is silent.
The wool inside and the organic cotton cover are certified to the Global Organic Textile Standard (GOTS), license GOTS-10229, issued by Oregon Tilth. The buckwheat hulls are a USA-grown agricultural product, cleaned and polished rather than treated, and hulls carry no organic certification of their own. That is why we call the wool side organic and stop short of calling the whole pillow organic.
The buckwool hybrid is best for people who need different support on different nights, particularly people whose neck or back pain comes and goes. Side sleepers can use the firmer buckwheat side for neck support. Back sleepers often prefer the softer wool side.
No. It's a single pillow with one cover and one zipper. Inside, a reinforced fabric divider creates two chambers, one for wool and one for buckwheat. The fills don't mix, but the pillow is one unified product. You flip the entire pillow to switch between sides.
That's fine and it happens frequently. Some people buy the hybrid specifically for the buckwheat side and never sleep on the wool side. Others do the opposite. If you find yourself exclusively using one side, the hybrid still works as a pillow. But if you know from the start that you only want one material, a dedicated single-fill pillow might be a better value.
The hybrid is more convenient, because you flip one pillow instead of swapping between two. It also costs less than buying a buckwheat pillow and a wool pillow separately. The trade-off is weight, about 10 pounds against two lighter pillows, and each side holds a little less than its standalone counterpart.
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