Using your Casey Cotton Fitted Sheet and Pillowcase Combo is a breeze. First, identify the tags on the fitted sheet to make sure you place it correctly on your long single bed with 40cm depth. Then, put the pillowcases on your pillows. For a great night's sleep, just lie back and enjoy the softness. When it comes to washing, you can use your regular laundry detergent. Wash them in cold or warm water on a gentle cycle to keep the fabric in good condition. Avoid using bleach as it may damage the cotton. After washing, tumble dry on low heat or hang them to dry. This will help maintain the quality of the sheets over time and ensure you keep enjoying their comfort for a long while.