The Circadian Buckwheat Pillow is a firm, moldable pillow filled with USA-grown buckwheat hulls in an organic cotton twill cover. Its air-jet-cleaned hulls are flatter and quieter than standard hulls, and the fill arrives generous so you can pour some out to set your own height. It suits side and back sleepers and anyone with neck pain who wants their head held still, and it sleeps cooler than foam or down. Against kapok and wool pillows it is firmer and more adjustable, but heavier and noisier, and it is not an option for anyone with a buckwheat allergy.
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Rated 4.8 out of 5 from 51 ratings, buyers praise the firm, steady support and the ability to adjust the fill. The main complaints are the weight and the firmness, which some find too much.
The Circadian USA-Grown Buckwheat Pillow is the firmest pillow Circadian makes. It is meant for side sleepers, back sleepers and anyone with neck pain who needs the head held in one place. The hulls flex under the weight of the head, lock against each other and hold the neck in line until the sleeper moves, so the height set at bedtime is the height in the morning.
The hulls are USA-grown, pre-polished, air-jet cleaned and UV sterilized. They are never roasted. The patented air-jet process breaks the hulls into flatter, single-sided pieces and cuts movement sound by up to 68 percent. Air moves through the spaces between the hulls all night, with no synthetic cooling treatment. This makes it the coolest material in the collection and suits hot sleepers and night sweats.
The pillow arrives full, with about 30% more hulls than most people keep. A zipper on the short end lets you pour off just enough hulls to fit your shoulders. Because the hulls lock together instead of puffing up, it looks lower than a fluffy pillow and holds the head at that height all night. The hulls last three to five years, and a few handfuls of new ones then bring the height back.