If you ask some people "How did you learn English so well?" you may get a surprising answer "In my sleep" These are people who have taken part in one of the recent experiments to test learn-while-you-sleep methods.
Scientists say that this sleep-study method speeds language learning greatly . In one experiment,the lessons were broadcast over the radio.Each lesson lasted twelve hours---from 8 p.m.The first three hours had English grammar and new words and were given with the student awake.At 11 p.m.Light music was broadcast over the radio and the radio whispered the lesson again into his sleeping ears.At 2 a.m. a sharp noise was sent over the radio to wake the sleeping student up for a few minutes to review the lesson. Then soft sounds sent him back to sleeep again,and the lesson continued.At 5 a.m. a noise woke him up and he had to go through the lesson again for three hours before breakfast.