Cleaning and maintaining a donut pillow is typically straightforward. Most donut pillows come with removable covers that are machine washable. It's recommended to follow the manufacturer's instructions for washing and drying to preserve the pillow's shape and material integrity. Additionally, spot cleaning with a mild detergent and warm water can help keep the pillow clean between washes. Ensure the pillow is completely dry before reusing it to prevent mold or mildew growth. Regular maintenance not only ensures hygiene but also extends the lifespan of the pillow for continued comfort and support.