(silence)
Nothing. Not even a titter?
Fine. Moving on.
Generally, as proof of the inherent danger that can be found in the irresponsible and reckless denial of rest to ones own body, scholars point to Robert De Niro's character in Martin Scorsese' manically depressing, noirish Taxi Driver. A semi-respectable blue-collar worker gets a job as a taxi driver (hence the very creative and refreshingly subtle film title) where he works 14+ hours a day and sleeps 5-, leading to a downward spiral that turns him into this:

Are you not exceedingly disturbed? Please do not pretend to be unaffected mentally and emotionally and spiritually by the image above. You are only fooling yourself.
You have been warned. Do not follow in the footsteps of the above taxi driver or you too might end up with an 80s mohawk. Under no circumstances must you allow this. Whatever the cause for your cold-hearted rejection of God's precious gift of sleep (second only to the gift of life), you simply must address the issue. Whether by the carrot (wanting to be not like Robert DeNiro) or the stick (not wanting to be like Robert DeNiro), I am certain that a single viewing Taxi Driver will give you a new, refreshing perspective on the damaging effects of sleep deprivation, and with it free tuna sandwhich.
(???)