Using your Casey Cotton Fitted Sheet is easy. First, just place the sheet on your single 40cm bed, making sure to match the tags on the sides to get the right orientation. Then, tuck the sheet neatly under the mattress. For a good night's sleep, simply make the bed as you normally would and enjoy the comfort. When it comes to washing, you can use a regular washing machine on a gentle cycle. Use a mild detergent to keep the fabric in great condition. Avoid using bleach as it can damage the cotton. After washing, tumble dry on a low - heat setting or hang it to dry. This will help maintain the durability of the sheet and keep it looking and feeling great for a long time.