I love to stay awake late at night. Basically, I am a night person. It is easy to work at night because everyone is quite, I can concentrate well in my job because nobody will bother me. But lately I feel that lack of sleep is taking it's toll on me. I would easily catch cough and colds when exposed. I think, I need to recharge by sleeping early now and then do my thing at night again when my body has recovered well. How about you, do you prefer staying up late at night?