In sleep duration, the brain and body will nourish and repair itself. If we cannot sleep enough, the efficiency of our brain will decrease. People are in the range of university that experiencing cannot sleep caused by many reasons, One reason, stress of pressure studies. According to Murff, Sharon Hall, as cited in Ross, Neibling and Heckert (1999). Another we cannot sleep the reason of environmental. A final reason, insomnia is systems sleeplessness