Now, a research which will definitely sound sweet to your ears! A new Japanese study has found a "musical" cure for insomnia.
The experiment was set out under the supervision of one of Japan's most celebrated "sleep doctors", to use the power of music to push 1,500 people into deep slumber.
The brains behind Dreams Kaimin, best translated as "good sleep" or "sound sleep," is Dr Takuro Endo, a neurologist who has made a science, and a lucrative CD business, out of selecting the right music to induce sleep.
He divides the music into three categories: melodies that fire the imagination; those that are calming and relaxing; and music that should, within ten minutes, slow the brain down to the point of unconsciousness.
However, he warns not to listen to the third category when you're driving.
In his limited laboratory experiments, Dr Endo honed a playlist from that third category down to a smaller collection, most of which was played to the Tokyo audience.
However, the audience at the extraordinary mass experiment in sleep-induction in Central Tokyo is still not sure whether Dreams Kaimin was a success or not.
But one firm conclusion was that a lot of men fell asleep as soon as the female vocalist began.