Using these Casey Cotton Sheet Sets is a breeze. Just put them on your king single bed (60cm) as you would with any regular sheets. The tags on the fitted sheet will help you get the orientation right. When it comes to washing, you can use a normal washing machine setting. However, use a mild detergent to keep the fabric in good condition. Avoid using bleach as it can damage the cotton. After washing, tumble dry on a low - heat setting. This will help maintain the softness and durability of the sheets. Store them in a cool, dry place when not in use to prevent any mold or mildew growth.