Using this pillow is simple. Just place it on your bed and adjust it to your preferred position. It's suitable for all sleeping positions and will support your head and neck well. When it comes to maintenance, you can take off the cover and machine - wash it regularly to keep it clean. Make sure to dry the cover thoroughly before putting it back on. As for the pillow itself, avoid getting it wet. Keep it in a well - ventilated area when not in use. Don't expose it to direct sunlight for long periods. If you have any questions or issues within the 3 - year U.S. warranty period, you can contact the customer service for help.