Using these sheets is simple. Just put the fitted sheet on your split king bed first, making sure to use the tags to get the correct orientation. Then lay the flat sheet on top, tucking it in neatly. You can add the pillowcases to complete the look. 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 shape. Don't use bleach as it might damage the cotton. After washing, tumble dry on a low setting. These sheets are very durable, but try not to over - stretch them when handling to maintain their fit. And to keep them looking their best, store them in a cool, dry place when not in use.