Sleep Deprivation Or A Sleep Disturbance Disorder?

First a brief summary of the essay.
In this report written by Robert P. Mahan from the University of Georgia, Antonio B. Carvalhais and Stephen E. Queen from the University of Connecticut conducted a study on Sleep Reduction In Night-Shift Workers: Is It Sleep Deprivation Or A Sleep Disturbance Disorder? It is observed that there is a tendency of reduction in the sleep length of night-shift workers. Researchers believed that workday sleep length is related to time-of-day worked. Workers on the night-shift on the average have significantly reduced workday sleep length (Tepas, Armstrong, Ca…