Wooly bolas, also referred to as wooly down, are small fluffs of wool produced when a carding machine runs backwards. Light and airy, these bolas are able to be molded around a sleeper’s head to provide a custom comfort experience. Depending on sleeping style and preference, the pillows can be shaped to support side sleepers, back sleepers, and stomach sleepers. As a natural material, wool is naturally dust mite and mildew resistant that is also washable. Additionally, no chemicals or unnatural materials are used in our Wooly Bolas Pillows.