Using these Casey Cotton fitted sheets is a breeze. Just place the sheet on your Super King 60cm bed, aligning it with the corners. The tags on each side will help you get the orientation right. For a restful sleep, make sure the sheet is smooth and wrinkle - free. When it comes to washing, you can use a regular laundry detergent. Wash them in cold or warm water on a gentle cycle 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. Ironing on a medium - heat setting can make the sheets look even nicer, but it's not necessary. With proper care, these sheets will last you a long time and keep providing you with a comfortable sleeping experience.