The hulls are smoother than I expected
I've slept on cheaper buckwheat pillows and the hulls were sharp and loud. These feel like they've been worked over. Quieter and softer against the pillowcase.
Circadian vs Hullo
Circadian, on the hulls and the return: both are USA-grown hull pillows with a zipper and 60 nights, but ours are air-jet polished and UV sterilized, sewn by hand in New Jersey, and the return label is on us where Hullo's is on you.
Hullo's buckwheat pillow is $129 at Standard and ours is $149, both USA-grown hulls in an organic cotton cover with a zipper and 60 nights; the twenty dollars buys what was done to the hulls and who pays when it goes back. Ours are air-jet polished, which cuts the rustle their one-star reviews mention, and UV sterilized, no chemical wash. Inside 60 nights the return label is on us; Hullo's trial page puts return shipping on you. Ours is sewn by hand in New Jersey, with the Buckwool Hybrid beside it for a soft side.
Six fills, one zipperBy the numbers
Three figures that decide most pillow purchases, side by side. Every number on the Hullo side is from their own site, read September 9, 2026, and the note under each bar says where.
Hullo makes one pillow in a fill we make. Their wording sits in every cell on their side, and the source is under the table. If you are choosing hulls, the Buckwool Hybrid in the list below is the same hulls with a wool side to turn to.
Both are USA-grown hulls in an organic cotton cover with a zipper and a 60-night trial. The rows that separate them are the hulls themselves, the weight, and the return.
| What matters | Circadian Buckwheat PillowStandard 20 by 26 | Hullo Buckwheat PillowStandard/Twin 20 by 26, read September 9, 2026 |
|---|---|---|
| Price | $149.00 Standard 20 by 26, read live. Other sizes from $89.00 to $199.00. | $129 at Standard, 20 by 26Small $79, King $199. Two or more takes $40 off each, per their page. |
| Fill | USA-grown buckwheat hulls, air-jet polished and UV sterilized, cleaned with air and light rather than a chemical wash.About 8 pounds in a standard. Polishing knocks the points off the hulls, which makes them up to 68 percent quieter than roasted pyramid hulls. | About 9 pounds 12 ounces of Montana and North Dakota hulls, milled and air-cleaned, never roasted, in their wordsTheir FAQ says they prefer certified organic hulls when available and that the current crop is not certified. |
| Cover | Organic cotton, undyed. | 100 percent organic cotton twill, which they call certified, 7 ounce, preshrunk, machine washable, in their words |
| Certification | Organic cotton cover, and hulls we describe exactlyThe hulls are USA-grown and we do not call them organic, or borrow a certificate for them. | An organic cotton cover they call certified, with no certifier or number publishedGOTS is not claimed anywhere on their site. Their FAQ says neither the cover nor the hulls are treated with flame retardants. |
| Adjustable | Full-length side zipperIt arrives about a third fuller than most people keep. Take some out until your head sits level with your shoulders, and put it back whenever you change your mind. | Yes, a concealed zipper; scoop hulls out with a cup |
| Refills sold | Hull refills sold, from 5 pounds upSo the pillow goes back to full years from now instead of into the bin. | Yes, 5, 10 and 20 pound bags from $29Grown and milled in the USA, not certified, in their words. |
| Sleep trial | 60 nights, slept onSleep on it, adjust it, and send it back inside 60 nights if it is not yours. | 60 nights, slept on, no questions askedReturned pillows cannot be resold; their page suggests passing yours to a friend, relative or pet. |
| Return shipping | We pay return shippingFull refund, no restocking fee. Free shipping on the way out too. | You payTheir trial page: shipping charges for returned products are the responsibility of the purchaser. |
| Where it is made | Handmade in New Jersey.The same hands have been making pillows in this New Jersey workshop since 1981. | Cut, sewn and assembled in Duluth, Minnesota, in their words |
| How long it lasts | 3 to 5 years per load of hulls, then refresh the hulls and keep the pillow.A figure we publish and hold to, with a refill behind it. | not publishedNo warranty is published beyond the trial. |
Materials, their words: Premium Buckwheat Hulls, American-grown, never roasted dry and crumbly. 100% Certified Organic Cotton, machine-washable, preshrunk 7 oz. twill. Hullo's current stock of buckwheat hulls were grown in Montana and North Dakota. All our buckwheat hulls are milled and air-cleaned in North Dakota.
Certification, their words: We prefer certified organic when they're available, but when a non-certified crop is of superior quality, we always select that one. The currently shipping crop is not certified, but guaranteed to be of superior quality.
Trial and returns, their words: 60-Night Trial: We guarantee you'll love Hullo. If you are not satisfied with Hullo for any reason, send it back to us and we'll refund your purchase, no questions asked. Shipping charges for returned products are the responsibility of the purchaser and are not covered by our free shipping policy.
What they say it is best at, their words: Firm, adjustable support that stays cool. The Original Cooling Firm Bed Pillow. America's Favorite Buckwheat Pillow.
Sources for this table:Hullo Buckwheat Pillow product page (read Sep 9, 2026) · Hullo buckwheat hulls refill page (read Sep 9, 2026) · Hullo FAQ (read Sep 9, 2026) · Hullo 60-night trial page (read Sep 9, 2026)
Up close
Most buckwheat pillows are filled with rough three-sided hulls, which is where the crunch comes from. Ours are air-jet polished into flatter, single-sided pieces and sterilized with ultraviolet light rather than a chemical wash, so they interlock quietly and hold your neck where you set it.
Move over the fill to see it up close
The list most pillow makers hope you never read. None of it is in a Circadian pillow.
The arithmetic
Price at Standard divided by the nights in the lifespan we publish, using the low end of our own range. Hullo's side shows what they publish.
$149 ÷ 1095 nights = 13.6¢ a night
$149 at Standard, over the 3 years we publish as the low end of its life, is 1095 nights, so it works out to about 13.6 cents a night. A refill bag resets that clock without buying a new pillow, so the real figure only goes down from here.
not published
Hullo publishes no lifespan and no warranty for the pillow, so there is no number to divide.
Which pillow for which sleeper
Our column names the Circadian fill and the mechanism. The Hullo column names the pillow on this page built on the same fill, and grades nothing else about it.
| Sleeper | Circadian | Hullo |
|---|---|---|
| Side sleeper | Buckwheat Pillow, with the Buckwool Hybrid beside itHulls lock at the height a shoulder needs and stay there. | Hullo Buckwheat Pillow |
| Back sleeper | Organic Wool PillowMedium height, and it springs back instead of packing down. | Not among the pillows compared here |
| Stomach sleeper | Wild-Harvested Kapok PillowTake fill out until it is nearly flat; kapok stays soft at any height. | Not among the pillows compared here |
| Sleeps hot | Organic Wool PillowMoves moisture off your skin and holds up to 30 percent of its weight before the surface feels damp. | Hullo Buckwheat Pillow |
| Neck pain | Buckwheat Pillow, with the Buckwool Hybrid beside itHulls flex under your head and then lock, holding your neck where you set it. | Hullo Buckwheat Pillow |
| Replacing down | Wild-Harvested Kapok PillowThe closest natural fill to down: hollow fibers that are mostly air. | Not among the pillows compared here |
| Leaving memory foam | Tree-Tapped Latex PillowPushes back instead of sinking, and the height is yours to set. | Not among the pillows compared here |
| Wants nothing from an animal | Kapok, Organic Cotton, Buckwheat or Tree-Tapped LatexFour of our six fills carry no wool. | Hullo Buckwheat Pillow |
| Dust mite allergies | Organic Wool PillowWool holds moisture away from the surface, and mites need damp. | Not among the pillows compared here |
Ours come from Judge.me and update on their own. Hullo's number is what their product page showed on the day we read it.
Judge.me collects these after delivery, and the numbers on this card update whenever a review lands, so they are never copied in by hand.
Read from the review block on their product page on September 9, 2026. Their reviews are collected on their own site rather than through a named third-party platform.
My PT told me to find a pillow that supports the cervical curve and doesn't compress. Memory foam made me wake up with my head sunk in a hole. Buckwheat actually holds the shape. First week is weird with the sound. I don't notice it anymore.
I've slept on cheaper buckwheat pillows and the hulls were sharp and loud. These feel like they've been worked over. Quieter and softer against the pillowcase.
Used to flip my pillow looking for the cold side. There's no warm side with buckwheat. Air just moves through it. Game over for hot-side flippers.
If you came here for an alternative
Start with buckwheat, then the hybrid, which is the same hulls with a wool side. The other four are fills Hullo does not make.
USA-grown hulls cleaned by air jet and sterilized with ultraviolet light rather than chemistry, inside an organic cotton cover. The firmest pillow we make, and the one that holds your neck exactly where you set it.
Best for neck pain and hot sleepers
Organic wool on one side, buckwheat hulls on the other, split by an internal cotton divider. Firm and cool when you need it, soft and silent when you turn it over.
Best for anyone torn between firm and soft
Texas-grown organic cotton inside an organic cotton cover, certified as a finished pillow. Dense, silent, medium firm, and the shape holds for years without upkeep.
Best for most people, and the strongest certification we hold
Organic New Zealand wool under the same finished-product certification as our cotton. Holds up to 30 percent of its weight in moisture before the surface feels damp, so you wake up dry.
Best for night sweats, warm rooms, dust mite allergies
Gathered from seed pods that ripened, split and fell, from trees that are never felled, and nothing is applied to the fiber at any point between the pod and your bed.
Best for chemical sensitivities, and replacing down
Slow-pour Dunlop latex tapped from living rubber trees and shredded, so it pushes back instead of settling and the height is yours to set. FSC certified rubber-tree sourcing, inside an organic cotton cover.
Best for people leaving memory foam
Some of their buyers say so, and one of their one-star reviews is titled It's Noisy. Ours are air-jet polished, which knocks the points off each hull so the pieces slide instead of scrape, up to 68 percent quieter than roasted pyramid hulls.
A Standard holds 9 pounds 12 ounces of hulls, per their page, and their own reviews call it extremely heavy and hard to get into a pillowcase. Ours holds about 8 pounds at Standard, arrives about a third fuller than most people keep, and the hulls you take out come back whenever you want more height.
You do. Their trial page says shipping charges for returned products are the responsibility of the purchaser and are not covered by their free shipping. Ours is the same 60 nights, slept on, with the return label on us and a full refund.
Their FAQ says they prefer certified organic hulls when a crop is available and that the currently shipping crop is not certified. We do not call our hulls organic. They are USA-grown, air-jet polished and UV sterilized, inside an organic cotton cover, and we describe them exactly rather than borrowing a certificate for them.
Several Hullo reviews describe a stiff neck in the first week before it settled, and one buyer removed six and a half cups of hulls before it fit. That is the height: hulls interlock and hold your neck exactly where you set it, so the first job is to take hulls out until your ear sits over your shoulder. Ours arrives full so the only adjustment is downward, and the Buckwool Hybrid gives you a wool side for the nights you want something softer.
One of their reviews mentions a funny smell for the first few days that wore off. Ours are cleaned with air and ultraviolet light rather than a chemical wash, so nothing was added that could smell.
The Circadian Buckwheat Pillow. Same USA-grown hulls, same organic cotton cover, same zipper and 60 nights, with the hulls polished and sterilized and the return label on us. If you are choosing hulls we would put the Buckwool Hybrid beside it, because a wool side answers the two things people hesitate over with buckwheat, the sound and the firmness, without giving up the hold.
Yes, in 5, 10 and 20 pound bags from $29, grown and milled in the USA. We sell hull refills from 5 pounds up too, the same polished and sterilized hulls that fill the pillow, so a pillow that has settled after a few years goes back to full instead of into the bin.
Cut, sewn and assembled in Duluth, Minnesota, in their words, from hulls grown in Montana and North Dakota. Every Circadian pillow is filled and sewn by hand in New Jersey, from USA-grown hulls.
Both are firm hull pillows, and hulls flex under your head and then lock, which a soft fill cannot do, holding your neck in line all night. Ours does that with polished hulls, a lighter Standard, and a hybrid beside it with a wool side. Set the height first.
Buckwheat pillows across the market, scored on what each brand publishes.
How the scores on those pages are built, attribute by attribute.
The cost-per-year arithmetic behind the refill line on this page.
Every rival fact on this page was read from the brand's own site on the date shown, and the cell repeats their wording. If Hullo changes a price or a policy, tell us and we will re-check the row.

If you want a buckwheat pillow, buy the one whose hulls were polished and sterilized, that arrives full so you set the height, and that can come back inside 60 nights with the label on us. If the firmness worries you, the hybrid gives you a wool side to turn to.
See the buckwheat pillowTap any one to see where they posted it.
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