Nessun Dorma (None Shall Sleep) is an
aria from the final act of
Giacomo Puccini's
opera Turandot,
[1] and is one of the best known
tenor arias in all opera. It is sung by Calaf, Il principe ignoto (The unknown prince), who falls in love at first sight with the beautiful but cold Princess Turandot. However, any man who wishes to wed Turandot must first answer her three riddles. If he fails, he will be beheaded.
In the previous act, Calaf has correctly answered the three riddles put to all of Princess Turandot's prospective suitors. Nevertheless, she recoils at the thought of marriage to him. Calaf offers her another chance by challenging her to guess his name by dawn. (As he kneels before her, the 'Nessun Dorma' theme makes a first appearance, to his words Il mio nome non sai!.) If she does so, she can execute him, but if she does not, she must marry him. The cruel and emotionally cold princess then decrees that none of her subjects is to sleep that night until his name is discovered. If they fail, all will be killed.
As the final act opens, it is now night. Calaf is alone in the moonlit palace gardens. In the distance he hears Turandot's heralds proclaiming her command. His aria begins with an echo of their cry and a reflection on Princess Turandot
Just before the climactic end of the aria, a chorus of women is heard singing in the distance
