Recently I have sleep disorders. So every day before sleeping, I get nervous, I am going get proper sleep. So now, I have this weird thought saying “Sleep is not necessary”. I know the scientific reason for sleeping. I also know that this thought is irrational.But now I have a feeling “Why do we sleep”. This thought comes in my mind, even if I know sleeping is important and even after I get sufficient sleep now-a-days. I want to know why I am getting this thought. Is my brain trying to fight the fear against Insomnia? It is very irritating and disturbing, because inspite of knowing the answer i keep on asking this question to myself.