Using your Sferra Giotto King Pillowcases is as easy as slipping them onto your pillows. They'll instantly add a touch of luxury to your sleep experience. When it comes to maintenance, machine wash them in warm water on a gentle cycle. Make sure to wash dark colors separately. Avoid using bleach as it can weaken the fabric and cause yellowing. Also, don't use fabric softener. Tumble dry on low heat and take them out while they're still a bit damp. To bring back their luster and sheen, you can iron them on the 'cotton' setting.