For many, a struggle to keep your weight down can be enough to cause a few sleepless nights.
But for F1 driver Jenson Button the opposite is true with the former world champion revealing he never sleeps more than eight hours to avoid putting on a few extra pounds.
Button is considered to be one of the fittest drivers in the sport. Relatively tall compared to his peers, Button's fitness regime even extends to regularly competing in triathlons while his love of cycling is an open secret.
However, what's less well known is that Button also regulates his sleep patterns to prevent weight gain.
Watch the video at the top of the page as Button explains to Sky Sports why he never sleeps more than eight hours and tells us about his morning routine to keep lean.