Since king-size sleeping mattresses can change marginally in size, record the specific elements of your bedding before purchasing king-size bedsheets to guarantee an appropriate fit. Additionally, consider the depth of your sleeping cushion and discover fitted sheets to coordinate. Pick standard fitted sheets for a bedding depth of 7 to 14 inches, deep pocket sheets for a 15-inch depth, and additional deep pocket sheets for a profundity of 16 to 22 inches.