大象传媒

Sleep isn't just important for your body, but for the economy too.

A report out by RAND Corporation says that the US, Canada, UK, Germany and Japan lose up to $400bn a year through lack of sleep. That's roughly equivalent to the US spending on defence and security.

So what can we do to make sure we all get enough rest? The 大象传媒's Benjie Guy went to the Somnex Sleep Show in London to find out...