To use this duvet, simply place it on your super king - sized bed. For a more comfortable sleep, you can pair it with a suitable duvet cover. When it comes to cleaning, it's best to follow the care instructions on the label. Usually, a gentle machine wash in cold water is recommended. Avoid using harsh detergents or bleach as they can damage the down and feathers. After washing, let it air dry thoroughly. Also, fluff the duvet regularly to keep the down and feathers evenly distributed and maintain its loft.