Using these Casey cotton sheet sets is a breeze. Just put the fitted sheet on your single 50cm bed, making sure to use the tags to get it the right way around. Then add the flat sheet and pillowcases. For the best results, wash them in cold or warm water on a gentle cycle. Avoid using harsh detergents or bleach as they can damage the fabric. After washing, tumble dry on a low setting. These sheets are very durable, but it's still a good idea to check for any loose threads or damage regularly. With proper care, they'll last you a long time and keep you comfortable night after night.