Non-stop lifestyle catches up with Diddy, now tortured by insomnia at 40

Sleep can elude even those who appear to have it all. Rapper Sean ‘P. Diddy’ Combs rules over a hip-hop empire valued in the hundreds of millions, throws lavish parties and has an entourage of dozens of people including his own personal barber.The one thing missing from Diddy’s life is sleep."I was proud of working 18 hours a day and sleeping three hours a night," he told ABC’s “Nightline”