{"title":"Pillow Fill Refills","description":"\u003cfigure style=\"margin: 0 0 2rem 0; aspect-ratio: 16\/9; overflow: hidden; border-radius: 10px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0592\/1141\/5611\/files\/cotton-10-detail-macro.jpg?v=1780585776\" alt=\"Circadian pillow fill refills — cotton, wool, kapok, buckwheat, and latex by the pound\" loading=\"eager\" style=\"width: 100%; height: 100%; object-fit: cover; display: block;\"\u003e\u003c\/figure\u003e\u003cp\u003eEvery Circadian pillow has a side zipper, which means the fill is replaceable rather than disposable. After a few years, natural fiber compresses and the pillow loses loft. A refill bag opens the zipper window back up. Add fresh fiber to the chamber, distribute by hand, and the pillow runs another cycle. This is the actual difference between a $30 polyester pillow that lives 18 months and a $149 cotton pillow that lives a decade with a $39 refill every few years.\u003c\/p\u003e\n\u003ch3\u003eOrganic Cotton Pillow Fill Refill\u003c\/h3\u003e\n\u003cp\u003eThe densest fill we make. GOTS Certified Organic under license GOTS-10229. Sold in 3 lb and 6 lb bags. The bestseller, partly because cotton compresses gradually and gracefully so refilling is predictable.\u003c\/p\u003e\n\u003ch3\u003eOrganic Wool Pillow Fill Refill\u003c\/h3\u003e\n\u003cp\u003eGOTS Certified Organic long-staple wool. Wool springs back after compression more than other natural fibers, so refills are less frequent. Add a handful every couple of years to keep the loft consistent.\u003c\/p\u003e\n\u003ch3\u003eWild-Harvested Kapok Pillow Fill Refill\u003c\/h3\u003e\n\u003cp\u003eHollow microtube fiber, 80 to 90 percent air by volume. Kapok needs the most frequent refilling of the five fills because the fiber settles toward the edges with daily use. Add a handful every 6 to 12 months.\u003c\/p\u003e\n\u003ch3\u003eTree-Tapped Latex Pillow Fill Refill\u003c\/h3\u003e\n\u003cp\u003eShredded Dunlop latex pieces, OEKO-TEX Standard 100 verified. Latex doesn't compress like fiber fills, so refills are about restoring volume after years of use rather than seasonal top-ups.\u003c\/p\u003e\n\u003ch3\u003eBuckwheat Hulls Refill\u003c\/h3\u003e\n\u003cp\u003eUSA-grown, pre-polished, air-jet cleaned, UV sterilized. Buckwheat hulls break down gradually over 3 to 5 years. Refill bags are sold in 5, 10, 20, 50, and 100 lb sizes for one pillow up to a household.\u003c\/p\u003e\n\u003ch3\u003eWhy refills matter for the lifetime cost of a pillow\u003c\/h3\u003e\n\u003cp\u003eA $30 polyester pillow replaced every 18 months costs $20 per year and contributes to landfill. A $149 cotton pillow plus a $39 refill every 3 years costs $13 per year and stays out of the waste stream. Natural fill plus a zippered design is what makes the math work.\u003c\/p\u003e\n\u003cp\u003e60-night sleep trial on every refill, same as the pillows.\u003c\/p\u003e\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I know when my pillow needs a refill?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIf you wake up and your head is closer to the mattress than you remember, or you find yourself folding the pillow in half for support that used to be there, that's the signal. Most cotton pillows need a 3 lb top-up every 3 to 5 years.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I add a different fill than what the pillow originally had?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The covers are sized and shaped for specific fills, and mixing kapok into a cotton pillow (or any other crossover) changes the feel in ways that won't match the rest of the pillow.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the refill bags certified?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCotton and wool refills are GOTS Certified Organic under license GOTS-10229. Latex refills are OEKO-TEX Standard 100 verified. Kapok is wild-harvested (the term organic doesn't apply to wild harvest). Buckwheat hulls are USA-grown without synthetic pesticide treatment.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"How do I know when my pillow needs a refill?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"If you wake up and your head is closer to the mattress than you remember, or you find yourself folding the pillow in half for support that used to be there, that's the signal. Most cotton pillows need a 3 lb top-up every 3 to 5 years.\"}},{\"@type\":\"Question\",\"name\":\"Can I add a different fill than what the pillow originally had?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. The covers are sized and shaped for specific fills, and mixing kapok into a cotton pillow changes the feel in ways that won't match the rest of the pillow.\"}},{\"@type\":\"Question\",\"name\":\"Are the refill bags certified?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Cotton and wool refills are GOTS Certified Organic under license GOTS-10229. Latex refills are OEKO-TEX Standard 100 verified. Kapok is wild-harvested. Buckwheat hulls are USA-grown without synthetic pesticide treatment.\"}}]}\n\u003c\/script\u003e","products":[{"product_id":"buckwheat-hulls-for-pillows","title":"Buckwheat Hulls for Pillows","description":"\u003cp\u003eThe same pre-polished USA-grown buckwheat hulls we use in every Circadian Buckwheat Pillow, available as a standalone refill. Buckwheat hulls eventually break down into smaller fragments under the weight of nightly use, and when they do, the pillow loses its firm cervical support. Topping up the hulls (or fully replacing them) brings the pillow back to day-one feel without replacing the whole thing.\u003c\/p\u003e\u003cp\u003eMost buckwheat pillows on the market use roasted three-sided pyramid hulls, which are pointy, loud against the face through the pillowcase, and faster to crumble. Ours go through an air-jet cleaning process that breaks them into single-sided polished pieces before they go into the cover. That cuts the rustling by roughly 60 percent and makes the surface softer against the skin without changing the flex-and-lock support buckwheat is known for. Grown and air-jet processed in the United States, then sealed clean before shipping.\u003c\/p\u003e\u003ch3\u003eWhat you get\u003c\/h3\u003e\u003cp\u003eAvailable in 5, 10, 20, 50, 100, and 200 pound sealed bags. A Standard pillow typically holds about 6 to 8 pounds of hulls, a Queen 8 to 10, a King 10 to 12. Top-ups usually need 2 to 3 pounds; full replacements need closer to a full pillow's weight.\u003c\/p\u003e\u003ch3\u003eHow to use it\u003c\/h3\u003e\u003cp\u003eOpen the side zipper on your Circadian Buckwheat Pillow and add hulls a few handfuls at a time. Test the loft and firmness after each round because buckwheat is dense and small additions make a real difference. Side sleepers will usually want the pillow fuller for height; back sleepers usually want fewer hulls for a lower profile. Store unused hulls in the sealed bag away from moisture so they don't absorb humidity.\u003c\/p\u003e\u003ch3\u003eCertifications\u003c\/h3\u003e\u003cp\u003eThe hulls themselves are USA-grown and processed without synthetic pesticides or chemical treatment, so they don't carry a formal organic certification (GOTS audits textile fiber supply chains, not agricultural byproducts like hulls). The organic cotton cover on the pillow they go into is GOTS Certified Organic under Oregon Tilth license GOTS-10229.\u003c\/p\u003e","brand":"Circadian","offers":[{"title":"5 lbs","offer_id":42550850125883,"sku":"CIR-HULL-5","price":49.0,"currency_code":"USD","in_stock":true},{"title":"10 lbs","offer_id":42550850158651,"sku":"CIR-HULL-10","price":69.0,"currency_code":"USD","in_stock":true},{"title":"20 lbs","offer_id":42550850191419,"sku":"CIR-HULL-20","price":119.0,"currency_code":"USD","in_stock":true},{"title":"50 lbs","offer_id":43015152074811,"sku":"CIR-HULL-50","price":199.0,"currency_code":"USD","in_stock":true},{"title":"100 lbs","offer_id":43015152107579,"sku":"CIR-HULL-100","price":349.0,"currency_code":"USD","in_stock":true},{"title":"200lbs","offer_id":43015152140347,"sku":"CIR-HULL-200","price":549.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/1141\/5611\/files\/buckwheat-pillow-image-1.jpg?v=1776183030"},{"product_id":"organic-cotton-pillow-fill-refill","title":"Organic Cotton Pillow Fill Refill","description":"\u003cp\u003eCotton fiber is the densest natural pillow fill we use, which is why a Circadian Organic Cotton Pillow holds its shape for years instead of months. When the loft eventually settles, you don't need a new pillow. You need more of what's already inside it.\u003c\/p\u003e\u003cp\u003eThis refill is the same Global Organic Textile Standard (GOTS) certified organic cotton fill used in every Circadian Organic Cotton Pillow, sold by weight so you can top up the loft to your preferred firmness. Open the pillow's side zipper, add cotton until the height feels right, seal it back up. Standard pillows typically need a top-up every 18 to 24 months. Body pillows hold a larger fill volume and tend to go longer between refreshes.\u003c\/p\u003e\u003ch3\u003eCertifications\u003c\/h3\u003e\u003cp\u003eCertified under Oregon Tilth license GOTS-10229, publicly searchable on the GOTS database. Long-staple cotton grown on Texas farms without synthetic pesticides, processed without chlorine bleach, synthetic dyes, or chemical softeners. Same fiber, same supply chain, same audit trail as the pillow it goes into.\u003c\/p\u003e\u003ch3\u003eWhat you get\u003c\/h3\u003e\u003cp\u003eSealed bag in 3 lb or 6 lb. The 3 lb is enough to fully refresh a Standard pillow or top up a Queen or King. The 6 lb covers a full refresh of a King or two Standards, or a Body pillow refill with extra to spare.\u003c\/p\u003e\u003ch3\u003eHow to use it\u003c\/h3\u003e\u003cp\u003eOpen the side zipper on your Circadian Organic Cotton Pillow, add cotton by handful, compress gently as you fill so the fibers distribute evenly, and seal it back up. Cotton takes a few nights to settle into the new loft. If you've added too much, remove some and store the rest for the next top-up. Cotton fiber holds for years in a sealed bag.\u003c\/p\u003e","brand":"Circadian","offers":[{"title":"3 lb","offer_id":43531025121339,"sku":"CIR-RF-CT-3","price":39.0,"currency_code":"USD","in_stock":true},{"title":"6 lb","offer_id":43531025154107,"sku":"CIR-RF-CT-6","price":69.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/1141\/5611\/files\/organic-cotton-pillow-image-1_55c05aef-b623-41ac-b3df-0d6c458a483b.jpg?v=1774717867"},{"product_id":"organic-wool-pillow-fill-refill","title":"Organic Wool Pillow Fill Refill","description":"\u003cp\u003eLong-staple organic wool wicks up to 30 percent of its weight in moisture while the surface stays dry to the touch. That's how a Circadian Organic Wool Pillow handles night sweats and stays dust-mite resistant without any chemical treatment. The wool will eventually compress with use, and when it does, this refill brings the loft back without replacing the pillow.\u003c\/p\u003e\u003cp\u003eThis refill is the same Global Organic Textile Standard (GOTS) certified organic wool fill used in every Circadian Organic Wool Pillow, sold by weight so you can top up to your preferred firmness. Open the pillow's side zipper, add wool a handful at a time until the height feels right, seal it back up. Wool's natural springiness means even small top-ups add noticeable loft.\u003c\/p\u003e\u003ch3\u003eCertifications\u003c\/h3\u003e\u003cp\u003eCertified under Oregon Tilth license GOTS-10229, publicly searchable on the GOTS database. Sourced from sheep raised on certified organic farms in New Zealand, scoured without chlorine bleach or harsh detergents. Same fiber, same supply chain, same audit trail as the pillow it goes into.\u003c\/p\u003e\u003ch3\u003eWhat you get\u003c\/h3\u003e\u003cp\u003eSealed bag in 2 lb or 5 lb. The 2 lb is enough for a top-up on a Standard, Queen, or King. The 5 lb fully refreshes a Standard, Queen, or King with extra to top up a Body pillow.\u003c\/p\u003e\u003ch3\u003eHow to use it\u003c\/h3\u003e\u003cp\u003eOpen the side zipper on your Circadian Organic Wool Pillow, add wool a handful at a time, tease the fiber apart as you add it so it lofts properly rather than compressing into a clump, and seal it back up. The first night with new fill may feel slightly firmer until the wool settles into your sleep position.\u003c\/p\u003e\u003ch3\u003eA note on scent\u003c\/h3\u003e\u003cp\u003eFresh wool has a faint lanolin scent that some people describe as earthy or sheepy. The scent fades within a few days once the wool is exposed to room air. If you're scent-sensitive, air the bag's contents in indirect sunlight for an afternoon before adding to your pillow.\u003c\/p\u003e","brand":"Circadian","offers":[{"title":"2 lb","offer_id":43531025186875,"sku":"CIR-RF-WL-2","price":69.0,"currency_code":"USD","in_stock":true},{"title":"5 lb","offer_id":43531025219643,"sku":"CIR-RF-WL-5","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/1141\/5611\/files\/organic-wool-pillow-image-1_d18c90b7-6d80-4a82-8ede-f9c1173d45e7.jpg?v=1774656270"},{"product_id":"natural-kapok-pillow-fill-refill","title":"Wild-Harvested Kapok Pillow Fill Refill","description":"\u003cp\u003eWild-harvested kapok grows inside seed pods on Ceiba pentandra trees in Indonesian rainforests. Workers harvest the pods, separate fiber from seeds, clean it, and ship it. The fiber moves from the tree pod to your pillow without passing through a single chemical process because the raw material is soft, hypoallergenic, and suitable for pillow filling without modification.\u003c\/p\u003e\u003cp\u003eWhen the loft eventually drops in a Circadian Wild-Harvested Kapok Pillow, this refill brings it back without replacing the pillow. This refill is the same wild-harvested kapok fiber used in every Circadian Wild-Harvested Kapok Pillow, sold by weight so you can restore the loft you started with. Open the pillow's side zipper, add kapok by hand until the height feels right, seal it back up. Kapok is the lightest natural fiber on earth, so a small amount adds noticeable loft.\u003c\/p\u003e\u003ch3\u003eOrigin and processing\u003c\/h3\u003e\u003cp\u003eWild-harvested in Indonesia from naturally fallen Ceiba pentandra pods. Naturally hypoallergenic, naturally dust-mite resistant, free of every common allergen and chemical sensitizer found in synthetic fills. Wild-harvested fiber sits outside the GOTS system because the trees aren't farmed, so we use \"organic cotton cover\" only when describing the pillow, not the kapok itself.\u003c\/p\u003e\u003ch3\u003eWhat you get\u003c\/h3\u003e\u003cp\u003eSealed bag in 1.5 lb or 3 lb. Because kapok is the lightest natural fiber on earth, even the 1.5 lb bag expands to a meaningful top-up. The 3 lb is enough to fully refresh any pillow from Standard to King, with plenty extra to top up a Body pillow.\u003c\/p\u003e\u003ch3\u003eHow to use it\u003c\/h3\u003e\u003cp\u003eOpen the side zipper on your Circadian Kapok Pillow and add kapok by handful, fluffing as you go because the fiber compresses in the bag and lofts when released. Standard pillows typically need a top-up every 12 to 18 months because kapok settles faster than cotton or wool. Regular fluffing (a quick shake a few times per week) extends the time between refills.\u003c\/p\u003e\u003ch3\u003eWhy kapok feels different\u003c\/h3\u003e\u003cp\u003eEach kapok fiber is a hollow microtube, 80 to 90 percent air by volume, with walls only 1 to 2 microns thick. That hollow structure is why kapok feels like down and why it's the lightest natural fiber on earth. The fiber's cell wall has a natural waxy coating that repels liquid water, which is why kapok resists mold and mildew without any treatment.\u003c\/p\u003e","brand":"Circadian","offers":[{"title":"1.5 lb","offer_id":43531025252411,"sku":"CIR-RF-KP-15","price":49.0,"currency_code":"USD","in_stock":true},{"title":"3 lb","offer_id":43531025285179,"sku":"CIR-RF-KP-3","price":79.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/1141\/5611\/files\/natural-kapok-pillow-image-1_c0b67b53-bd41-41b4-82ca-cfcdcb66f5c0.jpg?v=1774656291"},{"product_id":"tree-tapped-latex-pillow-fill-refill","title":"Tree-Tapped Latex Pillow Fill Refill","description":"\u003cp\u003eSlow-pour Dunlop latex starts as sap from Hevea brasiliensis rubber trees on FSC certified plantations in Sri Lanka, tapped the way maple syrup gets tapped. The sap is poured into a mold and cured slowly in small batches, longer than the continuous-pour method used in mass production. That longer cure time locks in a uniform open-cell structure top to bottom, with air pockets connected from one side to the other.\u003c\/p\u003e\u003cp\u003eThis refill is the same shredded slow-pour Dunlop latex used in every Circadian Tree-Tapped Latex Pillow, sold by weight so you can adjust loft to your preferred firmness. Open your pillow's side zipper, pull pieces out for a lower profile or add them back for more height, seal it back up. Slow-pour Dunlop holds its loft for years, but when your sleep position shifts or you want to dial in a different feel, this refill gives you the same fiber to do it with.\u003c\/p\u003e\u003ch3\u003eThe two credentials, briefly\u003c\/h3\u003e\u003cp\u003eThe finished latex is certified to OEKO-TEX Standard 100 at Class 1, the strictest tier in the program, tested to the same safety threshold used for products designed for direct contact with infants and babies. The cover that wraps the pillow stays in place. Only the fill comes out and goes back in.\u003c\/p\u003e\u003cp\u003eThe upstream rubber-tree source is FSC certified (Forest Stewardship Council), which means the latex sap comes from independently audited responsible-forestry plantations rather than clear-cut or unmanaged land. Most natural latex pillows can claim OEKO-TEX Standard 100 on the finished material but cannot claim FSC on the upstream source.\u003c\/p\u003e\u003ch3\u003eWhat you get\u003c\/h3\u003e\u003cp\u003e3 pounds of shredded slow-pour Dunlop latex pieces in a sealed bag. Enough to fully refresh a Standard, Queen, or King Tree-Tapped Latex Pillow.\u003c\/p\u003e\u003ch3\u003eHow to use it\u003c\/h3\u003e\u003cp\u003eOpen the side zipper on your Circadian Tree-Tapped Latex Pillow and add or remove latex pieces a handful at a time. Test the loft after every handful or two, since small amounts make a noticeable difference. Latex pieces settle into place within a night or two and rebound the same way the original fill does. Store unused pieces in the sealed bag away from heat and light so they hold up for the next refresh.\u003c\/p\u003e\u003ch3\u003eA note on scent\u003c\/h3\u003e\u003cp\u003eFresh slow-pour Dunlop latex has a mild rubber scent that fades within 3 to 7 days. The smell is harmless and comes from the latex itself. If you're scent-sensitive, air the bag's contents in indirect sunlight for an afternoon before adding to your pillow.\u003c\/p\u003e\u003ch3\u003eLatex allergy\u003c\/h3\u003e\u003cp\u003eIf you have a latex allergy, this refill is not for you. Even with the cotton barrier of the pillow cover, latex allergens can transfer in a small but real fraction of cases. The Wild-Harvested Kapok, Organic Cotton, and Organic Wool refills are all latex-free.\u003c\/p\u003e","brand":"Circadian","offers":[{"title":"Default Title","offer_id":43529585328187,"sku":"CIR-LTX-FILL","price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/1141\/5611\/files\/shredded-natural-latex-pillow-image-1_7f26abc4-34cf-49fb-8f43-9dfa83820784.jpg?v=1780679917"}],"url":"https:\/\/circadianrest.com\/collections\/refills.oembed","provider":"Circadian","version":"1.0","type":"link"}