A motivational speaker told us Dangote sleeps for 4 hours per day.........

A motivational speaker told us Dangote sleeps for 4 hours per day.
Health professionals tell us to sleep for at least 6 hours (and as much as 8) per day. In fact, a popular, highly revvered Indian CEO died at 40 for lack of adequate sleep. Mr. Motivational Speaker, abeg, use other things to "motivate" us, not 4 hours sleep. Na person wey dey alive go get money.