According to this article, listening to relaxing music can improve not only quantity of sleep, but also quality.
http://news.bbc.co.uk/1/hi/health/4228707.stm
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The people in the music group reported a 35% improvement in their sleep, including better and longer night-time sleep and less dysfunction during the day.
Quote:
Lead author Professor Hui-Ling Lai, of the Buddhist Tzu-Chi General Hospital and the University of Taiwan, said: "The music group reported a 26% overall improvement in the first week and this figure continued to rise as they mastered the technique of relaxing into sedative music."
I personally don't do this, but I might try it some day if it can improve my normal alert state. What I normally do before I go to bed is listen to
Pimsleurlanguage lessons. They're audio lessons that teach you vocabulary and grammar and other things about the particular language you're studying. They're about 30 minutes long. I do it for a few reasons: it's a good way to learn and get familiar with foreign languages without upsetting my daily schedule; doing it before bed improves the odds of getting the information absorbed; it's relaxing; and it's a routine: it lets the body and mind know that soon it's going to be time to sleep. That's probably the most important part in terms of its sleep aiding effects. That's what it has in common with the advice of that BBC health article. It's the whole idea of having a before sleep ritual that winds you down and lets your body and mind know that it's soon going to be time to sleep. Do you have a ritual?