Circadian vs Hullo

Circadian vs Hullo: which buckwheat pillow is better?

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.

Circadian Buckwheat Pillow product shot, wide bedroom sceneSix fills, one zipper
Handmade in New Jersey
7 of 7 graded rows green on the Circadian side, across every table below. Their side is graded on the same test.
Filled and sewn by hand in New Jersey60-night sleep trialWe pay return shippingRefills for every fill

Why ours, in five lines

  1. We pay the return shipping inside the 60 nights. Their trial page says shipping on a returned pillow is the purchaser's responsibility.
  2. Hulls air-jet polished into flatter, single-sided pieces, up to 68 percent quieter than roasted pyramid hulls. One of their one-star reviews is titled It's Noisy.
  3. Hulls sterilized with ultraviolet light and cleaned with air, no chemical wash, and never roasted.
  4. About 8 pounds of hulls in a Standard against their 9 pounds 12 ounces, which their own reviews call extremely heavy.
  5. Handmade in New Jersey, with the Buckwool Hybrid made beside it for a soft side.

By the numbers

Circadian and Hullo, counted.

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.

Nights to decide, slept on

Circadian 60 nights
Hullo 60 nights

Hullo: Slept on, no questions asked; return shipping is the purchaser's, per their trial page.

Fills made, of the six on this page

Circadian 6
Hullo 1

Hullo: One buckwheat pillow.

Fills with a refill sold

Circadian 6
Hullo 1

Hullo: Hulls, in 5, 10 and 20 pound bags.

Nights to decide, slept on: Circadian 60 nights, Hullo 60 nights; fills made, of the six on this page: Circadian 6, Hullo 1; fills with a refill sold: Circadian 6, Hullo 1.

One table, buckwheat against buckwheat.

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.

Buckwheat, side by side.

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.

Circadian Buckwheat Pillow compared with the Hullo Buckwheat Pillow on price, fill, cover, certification, adjustability, refills, trial, returns and where each is made.
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.
Says exactly what it is, and it checks out Claimed without a number or scope Not offered or not published
What Hullo publishes, in their own words

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

Hulls with the points knocked off.

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.

  • 8 lbof USA-grown hulls in a Standard
  • Up to 68%quieter than roasted pyramid hulls, after air-jet polishing
Extreme macro photograph of pre-polished USA-grown buckwheat hulls, small dark walnut-brown pyramid shapes, lit by warm raking sunlight. Move over the fill to see it up close
What you're not sleeping on

The list most pillow makers hope you never read. None of it is in a Circadian pillow.

The arithmetic

What a night on it costs.

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.

Buckwheat Pillow

$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.

Hullo

not published

Hullo publishes no lifespan and no warranty for the pillow, so there is no number to divide.

Which pillow for which sleeper

Nine ways people sleep, and the pillow for each.

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.

Which Circadian pillow suits nine kinds of sleeper, and the Hullo pillow on this page built on the same fill.
SleeperCircadianHullo
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

What buyers say, from each brand's own page.

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.

Circadian, read live from Judge.me

Buckwheat Pillow4.77of 5

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.

Hullo, from their own product pages

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.

If you came here for an alternative

The best Hullo pillow alternatives in 2026, sorted by what you wanted from it.

Start with buckwheat, then the hybrid, which is the same hulls with a wool side. The other four are fills Hullo does not make.

Circadian Buckwheat Pillow product shot, wide bedroom scene
Cleaned with air and light

Buckwheat Pillow

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

From $89.00 See the pillow ›
Man with Circadian Buckwool Hybrid Pillow, wool and buckwheat hull dual fill clearly visible through side zipper
Two fills, one pillow

Buckwool Hybrid Pillow

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

From $99.00 See the pillow ›
Circadian Organic Cotton Pillow with cotton fill bursting from side zipper, NYC bedroom view
Best seller

Organic Cotton Pillow

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

From $89.00 See the pillow ›
Organic wool pillow on a made bed in a wide room scene, GOTS-certified wool fill
For warm sleepers

Organic Wool Pillow

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

From $99.00 See the pillow ›
Circadian Wild-Harvested Kapok Pillow with cream cotton cover, silky pale-yellow kapok fiber spilling from open zipper
Nothing applied

Wild-Harvested Kapok Pillow

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

From $79.00 See the pillow ›
Tree-tapped latex pillow with slow-pour Dunlop latex fill on a pink boucle bed
Springs back

Tree-Tapped Latex Pillow

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

From $89.00 See the pillow ›

What people ask before they choose.

Is the Hullo pillow noisy?

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.

Why is the Hullo pillow so heavy?

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.

Who pays for the return on a Hullo pillow?

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.

Are Hullo's buckwheat hulls organic?

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.

Does a buckwheat pillow make your neck sore at first?

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.

Does the Hullo pillow smell?

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.

Which Circadian pillow is closest to the Hullo pillow?

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.

Does Hullo sell hull refills?

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.

Where is the Hullo pillow made?

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.

Hullo or Circadian for neck pain?

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.

Further reading, on this site

Where the Hullo facts come from

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.

Polished hulls, 8 pounds of them, and the return label is ours.

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 pillow

Real people, real pillows

Tap any one to see where they posted it.