To use this sheet set, simply put the fitted sheet on your queen - size mattress, smooth out any wrinkles, and then place the flat sheet over it. For a cozy look, tuck the edges under the mattress. The pillowcases are designed to fit standard queen - size pillows. When it comes to maintenance, machine - wash the sheets in cold water on a gentle cycle. Use a mild detergent and avoid bleach as it may damage the fabric. Tumble dry on low heat to keep the softness. After drying, iron on a low - medium setting if needed. Always follow these steps to keep your sheet set looking and feeling great for a long time.