Using your Casey cotton flat sheets is easy. Just put them on your super king bed and enjoy a comfortable sleep. When it comes to washing, you can use a regular cycle in your washing machine. Use a gentle detergent to keep the fabric in good condition. Avoid using bleach as it might damage the cotton. After washing, tumble dry on a low - heat setting or hang them to dry. These sheets are durable, but to make them last even longer, don't over - stretch them when putting them on the bed. With proper care, you'll be able to enjoy these luxurious sheets for a long time.