Our woollie ball pillow is unique. The balls resist the need to attach to each other keeping your pillows loft. You can occasionally machine wash on hand wash cycle and air dry indoors. Dries fast. Also prevents pressure ont the ear due to the loose nature of these soft balled up woollies. Organically processed and raised for purity. Certified organic wool. Covered with our organic cotton fancy European ticking. This pillow is very comfortable -