I heard a news describing a man had not slept for 14 days. in my intuition , I thought he was sick and had severe sleeping problem. I know there is sleep control center in your brain to rule your sleeping rhythm . When night falls , you will be reminded to get sleep  . Even you have strong volition , most people cannot hold awake for 48 housrs . I ever viewed a Japanese TV program , there was a  competition for who is the last to sleep within 48 hours , you may see how they fight with their mind not to sleep . It is interesting and creative competition program to see their embarrassment .  Even the most tough guy hardly lasted for 40 hours to keep awake . Most participants were not able to hold over 36 hours awake. 

Haha!!  funny ,,,game with words,,i like it 

May be he is dead,,?  :((

Wait, am I subject to restrictions?

Answer is He sleeps at night.