Buckwheat Hulls for Pillows

The 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.

Most 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 up to 68 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.

What you get

Available 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.

How to use it

Open 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.

Certifications

The 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.