Queen size sheets are designed to fit a queen size mattress, which typically measures 60 inches wide by 80 inches long. These sheets come in various materials, including cotton, polyester, and linen, offering different levels of comfort and breathability. When purchasing queen size sheets, it's important to consider the thread count, which can affect softness and durability. Additionally, sheets may come in different styles, such as fitted, flat, and pillowcases, allowing for a complete bedding set. Proper care and washing can help maintain their quality over time.