Using your Sferra Giotto California King Fitted Sheet is easy. Just put it on your bed like any other fitted sheet. When it's time to clean, use a gentle cycle in warm water in your washing machine. Don't use bleach as it can weaken the fabric and make it yellow. Also, avoid using fabric softener. Wash dark colors separately to prevent color bleeding. For drying, use low - heat tumble dry and take it out while it's still a bit damp. If you want to bring back its luster and sheen, you can iron it on the 'cotton' setting.