one o'clock in the morning
Saniel knew better than any one that the life of every organ is composed of alternate periods of repose and activity , and he did not suppose that he would be able to work indefinitely without sleep . He only hoped that after some days of twenty hours of work daily , overcome by fatigue , he would have , in spite of everything , four hours of solid sleep , that Shakespeare called `` sore labor 's bath . '' He had not had these four hours , and the law that every state of prolonged excitement brings exhaustion that should be refreshed by a functional rest , was proved false in his case . After a hard day 's work he would go to bed at one o'clock in the morning and would go to sleep immediately . But very soon he awoke with a start , suffocating , covered with perspiration , in a state of extreme anxiety , his mind agitated by hallucinations of which he could not rid himself all at once . If he did not wake suddenly , he dreamed frightful dreams , always of Madame Dammauville or Caffie . Was it not curious that Caffie , who until then had been completely effaced from his memory , was resuscitated by Madame Dammauville in the night , ghost of the darkness that the daylight dissipated ?