{"title":"Helpful Add-ons","description":"\u003cp\u003eOnce you've chosen your pillow, these are the add-ons that help protect it, maintain it, and make the setup easier to live with.\u003c\/p\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":"circadian-waterproof-organic-cotton-pillow-protector","title":"Waterproof Organic Cotton Pillow Protector - GOTS + GreenGuard Gold","description":"\u003cp\u003eA pillow protector only works if you forget it's there. The cheap ones fail that test immediately. They crinkle like a grocery bag when you move, they trap heat because the plastic laminate has nowhere for air to go, and they smell faintly of vinyl for the first few weeks. You end up taking it off and hoping nothing ruins the pillow.\u003c\/p\u003e\u003cp\u003eThis protector is built around a different material stack. Two layers of Global Organic Textile Standard (GOTS) certified organic cotton knit surround a 1-mil bio-based polyurethane film, sourced from cornstarch rather than petroleum. The film is thin enough to flex silently when you move, and porous enough to let water vapor through, so your pillow still breathes even though nothing liquid can pass in. Independent lab testing puts the pore size at less than 1 micron. That's small enough to block dust mites (about 10 microns across), bed bug fluids (25 microns), and bacterial matter, while remaining breathable to air and water vapor.\u003c\/p\u003e\u003cp\u003eThe second certification is GreenGuard Gold. Where GOTS validates what's in the cotton and how it was grown and dyed, GreenGuard Gold tests the finished product for volatile organic compounds (VOCs), formaldehyde, and phthalates. It measures them at the stricter limits used in schools and healthcare facilities. Most waterproof protectors never submit their finished product for this level of indoor air quality testing, because the polyurethane films used by the industry wouldn't pass. This one does.\u003c\/p\u003e\u003cp\u003eA zipper runs the full length of the protector and encloses the pillow completely, so spills, sweat, dust mites, and bed bugs have no way in. It goes on under your pillowcase, which means it does its job invisibly. Machine wash cold, air dry, sleep on a pillow that still feels like the pillow you bought two years ago.\u003c\/p\u003e\u003cp\u003eThe cornstarch origin of the TPU film matters more than it sounds. Conventional waterproof films are petroleum-derived and don't break down. This one is fermented from plant sugars, biodegrades in industrial composting, and avoids the fossil-fuel supply chain that most indoor-air concerns trace back to. It's the same membrane chemistry used in hospital-grade mattress protectors, produced from a renewable feedstock instead.\u003c\/p\u003e\u003cp\u003eHandmade in New Jersey at the same workshop that sews the pillowcase and the pillows.\u003c\/p\u003e","brand":"Circadian","offers":[{"title":"Standard (20\" x 26\")","offer_id":43150496628795,"sku":"CIR-PP-STD","price":39.0,"currency_code":"USD","in_stock":true},{"title":"Travel (12\" x 16\")","offer_id":43150496596027,"sku":"CIR-PP-TRV","price":29.0,"currency_code":"USD","in_stock":true},{"title":"Queen (20\" x 30\")","offer_id":43150496661563,"sku":"CIR-PP-QN","price":49.0,"currency_code":"USD","in_stock":true},{"title":"King (20\" x 36\")","offer_id":43150496694331,"sku":"CIR-PP-KG","price":59.0,"currency_code":"USD","in_stock":true},{"title":"Body (20\" x 72\")","offer_id":43150496727099,"sku":"CIR-PP-BDY","price":89.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/1141\/5611\/files\/organic-cotton-pillow-protector-image-1.jpg?v=1771829106"}],"url":"https:\/\/circadianrest.com\/collections\/helpful-add-ons.oembed","provider":"Circadian","version":"1.0","type":"link"}