Using your Sferra Catena Twin Duvet Cover is easy. Just slip it over your duvet and enjoy the comfort. When it comes to cleaning, machine wash it in warm water on a gentle cycle. Remember not to use bleach because it can make the fabric weak and turn it yellow. Also, don't use fabric softener. Wash dark colors by themselves to prevent color bleeding. Tumble dry on low heat and take it out before it's completely dry. To get rid of wrinkles, steam iron it on the 'cotton' setting, but do it on the back side of the fabric. This way, you can keep your duvet cover looking great for a long time.