about eleven o'clock
It was the right thing to do on Nepenthe at that hour of the day , and Mr. Keith tried to conform to custom even under unusual circumstances such as these . Protected by the boat 's scarlet awning from the rays of the sun , they slumbered through the flaming hours . The duchess was a good sleeper , as befitted a person of regular habits and pure life . It was her custom to retire for the night at about eleven o'clock . Angelina , who reposed in an adjoining room , would enter softly at nine in the morning , draw up the blinds , and deposit a cup of tea at the bedside of her mistress . Up to that moment , she would slumber like a child . Rarely did she suffer from insomnia or nightmare .