Thomas Edison is said to have claimed sleep to be a waste of time. He did, however take naps during the day.
Albert Einstein, on the other hand, was aware of his sleep needs, acknowledging that he needed ten hours of sleep for optimum performance.
I have a lot in common with these two famous men.
I get eight to ten hours of sleep a night, and then I also take naps during the day. Caleb, our dog, wakes me up at eight, for some reason, he scratches my leg, I look at the clock, and is often is right on 8:00. Then I get up, fix the coffee, have a cup, sit down and watch TV and fall asleep. Then, a nap in the afternoon, maybe even a quick nap before going to bed.
I guess I am more like Einstein, when it comes to sleeping, the similarity ends there.