Using your Casey Cotton Sheet Set is a breeze. First, put the fitted sheet on your split king bed with the 60cm width. Use the tags on the sides to make sure it's placed correctly. Then, add the flat sheet on top. For a cozier look, you can layer a blanket or a comforter. When it comes to washing, you can use a regular cycle in your washing machine. Use a mild detergent to keep the fabric soft and long - lasting. Avoid using bleach as it can damage the cotton. After washing, tumble dry on a low - heat setting. To maintain the quality of your sheets, try to wash them every one to two weeks, especially if you use them regularly. This will keep them fresh and hygienic for a good night's sleep.