Using your Sferra Giotto King Flat Sheet is easy. Just put it on your king - sized bed for a luxurious sleep experience. When it comes to care, machine wash it in warm water on a gentle cycle. Remember, don't use bleach as it can damage the fabric and make it turn yellow. Also, avoid using fabric softener. Wash dark - colored sheets separately to prevent color bleeding. After washing, tumble dry on low heat and take it out while it's still a bit damp. If it loses its shine, you can iron it on the 'cotton' setting to bring back that luxurious look.