Using this double - bed white duck down duvet is easy. Just place it on your double bed and enjoy its warmth in autumn, spring, or winter. When it comes to cleaning, it's best to follow the care instructions on the label. Usually, a gentle machine wash on a low - temperature setting is okay, but avoid using harsh detergents. To keep it fluffy, give it a good shake after each wash. Also, store it in a cool, dry place when not in use to prevent mold and mildew. With its 10 - year guarantee, you can have peace of mind and enjoy this duvet for years to come.