Using your Sferra Estate King Flat Sheet is easy. Just place it on your bed to add a touch of luxury. When it comes to washing, use warm water and a gentle cycle in your machine. Don't use bleach as it can weaken the fabric and cause yellowing. Also, avoid using fabric softener. Wash dark - colored items separately. For drying, use low - heat tumble dry and take it out while it's still damp. To make it look shiny again, use a steam iron on the 'cotton' setting.