Using these Casey Cotton Bed Sheets is a breeze. First, just put the fitted sheet on your king - size 60cm bed. The tags on the sides will help you place it correctly. Then, lay the flat sheet on top and tuck it in as you like. You can add the pillowcases to complete the set. When it comes to washing, you can use a regular cycle in your washing machine with mild detergent. Avoid using bleach as it may damage the fabric. After washing, tumble dry on a low - heat setting to keep the sheets soft. These sheets are very durable, but it's still a good idea to check for any loose threads or damages occasionally. With proper care, they'll serve you well for a long time.