Using these Casey Cotton Bed Sheets is a breeze. First, simply put the fitted sheet on your long single bed (50cm). The tags on the sides will help you place it correctly. Then, lay the flat sheet over the bed, and tuck it in neatly. Add your favorite pillowcases to complete the look. When it comes to maintenance, you can machine - wash these sheets in cold or warm water. Use a mild detergent for the best results. Avoid using bleach as it might damage the fabric. After washing, tumble dry on a low setting. These sheets are very durable, but to keep them in top condition, don't over - dry them. Also, make sure to remove them from the dryer promptly to prevent wrinkles. With proper care, these sheets will provide you with a comfortable sleep for a long time.