How many hours does Mark Zuckerberg sleep?

Inquiring minds want to know, just how many hours does the tech mogul and Facebook founder, Mark Zuckerberg, actually dedicate to slumber? Given his renowned dedication to his company and its numerous projects, one might assume his sleep schedule is anything but conventional. But is he a serial sleeper, catching a few hours here and there, or does he embrace the benefits of a regular, full night's rest? Does he prioritize sleep for optimal cognitive function and productivity, or does he believe he can power through on minimal rest? The question remains, how does Zuckerberg balance the demands of his empire with the necessity of restful sleep?