
Some researchers believe we can arrive at better decisions by allowing our unconscious to work on them. "You start with taking in all the information, then, you distract yourself," says Maarten Bos from Harvard Business School. "Then, whatever feels right, that's the (option) you go with."

Sleeping can enhance brain activity associated with creativity. In 1965, the year he appeared in the movie "Help," pictured, Paul McCartney dreamt the tune to "Yesterday" (working title: "Scrambled Eggs"). The melody was so complete, he was concerned he was subconsciously plagiarizing. It is now one of the most covered songs in recorded music.

In 1964, golfer Jack Nicklaus reportedly pulled himself out of the performance doledrums after a dream in which his right hand was positioned differently. Trialling his "dream grip" allowed Nicklaus to hit 65, and then 68 at the Cleveland Open.

Author Stephenie Meyer was asleep when she conceived the "fantastically beautiful, sparkly" vampire played by Robert Pattinson in what would become the "Twilight" saga, and says chapter 13 of her first book is "essentially a transcript of my dream."

For when your own blockbuster concept arrives, Bos advises noting it down on bedside stationery, rather than electronic devices. "I can tell you this, and you are going to ignore it: (don't) have a phone or any other bright light in your bedroom within half an hour of going to sleep. It will push back your sleep cycle."


