i don't know why anyone would want to sleep just 4 hours unless they needed to.
too little sleep can shorten your life.
i think fighting the feeling of wanting to sleep is horrible and you are ignoring your body's need for rest and for regeneration and restoration. you are throwing off cortisol and insulin and all those other nasty hormones that affect your health, energy and weight.
do you have time to exercise or eat healthily?
there are always times when sleep hours are going to get cut into and unavoidable from time to time, but intentionally...more power to you...not for me.
besides do you think guys like trump needs to worry about doing all the other mundane things in life....he has personal chefs, housekeepers, valets, accountants, trainers. limos and jets which he probably catches a wink or two on
of course, if a few years of sleep deprivation can get you that, well, then now, there ya go!
