BBC NEWS | Health | Problems are solved by sleeping

BBC NEWS | Health | Problems are solved by sleeping: "Sleeping on a problem really can help solve it say scientists who found a dreamy nap boosts creative powers.

They tested whether 'incubating' a problem allowed a flash of insight, and found it did, especially when people entered a phase of sleep known as REM.

Volunteers who had entered REM or rapid eye movement sleep - when most dreams occur - were then better able to solve a new problem with lateral thinking."