Using these Casey Cotton Sheet Sets is a breeze. Just put the fitted sheet on your Split King Bed 60cm, making sure to use the tags to get the right orientation. Then add the flat sheet and pillowcases. When it comes to washing, you can use a regular cycle with mild detergent. Avoid using bleach as it might damage the cotton fabric. After washing, tumble dry on low heat to keep the sheets soft. To maintain their quality, try not to over - stretch the sheets when putting them on the bed. With proper care, these sheets will last you a long time and keep providing you with a comfortable sleep experience.