To use this duvet, simply place it on your super king bed. You can add a duvet cover for easy cleaning. When it comes to maintenance, it's recommended to air the duvet regularly to keep it fluffy. For cleaning, follow the instructions on the care label. Avoid exposing it to direct sunlight for a long time as it may damage the down and feathers. Also, don't over - stuff it in a storage bag when not in use, as this can compress the filling and reduce its loft.