Using these Casey cotton fitted sheets is a breeze. First, identify the tags on each side of the sheet to ensure it's placed correctly on your single 60cm bed. Tuck the sheet tightly around the mattress so it stays in place. When it comes to washing, use a gentle cycle with mild detergent. Avoid using bleach as it can damage the cotton fabric. You can tumble dry on a low - heat setting. To keep them looking and feeling great, iron on a medium - low heat if needed. Also, store them in a dry and cool place to prevent any mold or mildew growth.