King-size sheets are bedding designed to fit a king-size mattress, which typically measures 76 inches wide by 80 inches long. These sheets provide ample coverage and comfort for individuals or couples who prefer more space while sleeping. Available in various materials like cotton, polyester, and blends, king-size sheets come in different thread counts and styles to suit personal preferences. They usually include a fitted sheet, a flat sheet, and pillowcases, accommodating standard king-size pillows for a complete bedding set.