To use this sheet set, simply put the fitted sheet on your double bed, then lay the flat sheet on top and arrange the pillowcases on your pillows. When it comes to cleaning, you can machine - wash it in cold water with a gentle detergent. Avoid using bleach as it may damage the pastel pink color. After washing, tumble dry on low heat. Store the sheet set in a dry place when not in use to keep it in good condition.