Using your Casey Cotton Fitted Sheet and Pillowcase Combo is a breeze. First, find the right - sized sheet for your double bed. Use the tags on the fitted sheet to make sure it's properly placed on the bed. Then, slip your pillows into the pillowcases. For washing, you can use a regular cycle in your washing machine with mild detergent. Avoid using bleach as it might damage the high - quality cotton. After washing, tumble dry on a low - heat setting to keep the fabric soft and prevent shrinkage. Iron on a low - to - medium heat if needed. With proper care, these sheets will last you a long time and keep you sleeping comfortably.