Using this sheet set is a breeze. Just put the fitted sheet on your mattress up to 18 inches deep, then lay the flat sheet on top. The pillowcases are ready to hold your pillows. When it comes to cleaning, machine wash the sheets in cold water with like colors on the gentle cycle. Don't use bleach as it can damage the fabric. Tumble dry on low and take them out right away to avoid wrinkles. If there are a few wrinkles left, you can use a warm iron. Since these sheets are made of eco - friendly cotton and are OEKO - TEX certified, you can enjoy a healthy and comfortable sleep. Keep in mind not to use harsh chemicals on them to maintain their quality and softness.