six at night
`` To be sure he 's asleep at this hour , '' Anthony assured her proudly ; `` been asleep for two hours . Regular as a clock , that youngster . Nurse trained him right at the beginning , and Juliet has kept it up . Four months old now , and sleeps from six at night till four in the morning without waking . How 's that ? '' `` I suppose it 's remarkable , '' agreed Wayne meekly , `` but I do n't know anything about it . He might sleep twenty-three hours out of twenty-four -- I should n't understand whether to call him a prodigy or an idiot . ''