Pure Rest takes super pure, tested free of chemicals, wool and super processes it organically to remove vegetation, dust, and excess oils. The result is a lofty, clean wool that does not have the pungent odor of many natural wools. A unique wool pillow with woolie balls that prevent compression and can be occasionally machine washed on delicate. The woolie balls pillows are a bouncier feel than the regular wool fill and it doesn't compress like regular wool batting does. They are covered with organic cotton European jacquard for a finished look