Using these Casey Cotton Fitted Sheets is a piece of cake. Just place the sheet on your long single bed with 40cm depth, making sure the tags are in the right position. Then tuck the edges under the mattress. For washing, use a gentle cycle with mild detergent in warm water. Avoid using bleach as it can damage the fabric. You can tumble dry on a low setting. To keep them in great shape, don't over - dry. These sheets are durable, but it's still a good idea to handle them with care. If you notice any stains, spot - clean them as soon as possible. Enjoy a restful sleep with these comfortable sheets every night.