We don't usually recommend washing your cozy stress pillows in a washing machine, as machine washing may damage its unique winding structure. However, you may want to consider machine washing if hand cleaning methods do not remove the stain. In this case, be sure to set your washer's spin cycle to its lowest setting. Inside the washer, place your knotted or decorative pillows in the bottom separately to avoid washing them with other laundry. For extra protection, you can place your pillow in a white pillowcase or special laundry bag. Add the appropriate amount of detergent and start the wash program. After washing, the pillow knots should be placed in a well-ventilated area to dry naturally. If the pillow's manufacturer's instructions allow it, you can also choose to dry it in the dryer using the lowest temperature setting. Keep in mind that while machine washing pillows is convenient and quick, frequent machine washing may result in damage to the pillow's internal filling, which can affect its support and comfort.