To use this duvet, simply put it on your King - sized bed. It'll keep you cool and comfortable all summer. When it comes to cleaning, it's best to follow the care instructions on the label. Usually, it can be dry - cleaned or machine - washed on a gentle cycle. Store it in a cool, dry place when not in use. Avoid sharp objects that could tear the casing. And fluff it up regularly to keep the down and feathers evenly distributed for better insulation.