Using your Sferra Celeste King Duvet Cover is a breeze. Simply slide your duvet inside and enjoy the soft, crisp feel it brings to your bed. When it comes to maintenance, remember to machine wash it in warm water on a gentle cycle. Don't use bleach because it can make the fabric weaker and turn it yellow. Also, don't use fabric softener. Wash dark - colored items separately to prevent color bleeding. Tumble dry on low heat and take it out while it's still a bit damp. If it needs ironing, use the'steam iron' setting for cotton. Following these steps will keep your duvet cover in great shape for a long time.