Using your Casey Cotton Fitted Sheet & Pillowcase Combo is a breeze. First, put the fitted sheet on your King Single 40cm bed. Use the tags on the sides to make sure it's correctly placed. Then, slip your pillows into the pillowcases. For a good night's sleep, just lie back and enjoy the softness and breathability. When it comes to maintenance, these sheets are easy to take care of. You can machine - wash them in cold or warm water with a mild detergent. Avoid using bleach as it may damage the fabric. Tumble - dry on a low setting to keep them soft. After drying, you can iron them if you like, but it's not necessary. With proper care, your Casey Cotton Bed Sheets will last you a long time.