Using these Casey Cotton Sheet Sets is a breeze. Just put the fitted sheet on your single bed (60cm), using the tags to make sure it's the right way around. Then lay the flat sheet on top and add your favorite pillowcases. For maintenance, you can machine - wash these sheets in cold or warm water. Use a mild detergent to keep the fabric in great condition. Avoid using bleach as it can damage the cotton. Tumble dry on a low setting and iron on a medium heat if needed. With proper care, these sheets will last you a long time and keep you comfortable night after night.