酣然入睡的十大妙方您知道吗？人们睡觉的要变换８～１２种姿势；电灯发明前人们每天睡眠平均９个小时以上，而今却只有不足７小时了；世界上有大约２１％的人在睡眠上有这样那样的苦恼；其中三分之二来自于无法入睡；忙碌了一天之后，您总算可以安安静静地睡上一觉了，然... Top ten magic sound sleep you know? People slept to change 8 to 12 kinds of postures; people invented lighting before the average daily sleep more than 9 hours, but now only less than 7 hours; about 21% of people in the world have such distress in sleep; of which three Seconds from unable to sleep; after a busy day, you can finally sleep peacefully, however ...