What relaxation cds are good for destressing before bed?

What relaxation cds are good for destressing before bed?
I have a hard time sleeping too. I have one of these:

http://www.target.com/HoMedics-Sound-SPA-Relaxation-Machine/dp/B0009Y2E42/sr=1-3/qid=1241831782/ref=sr_1_3/175-1379006-7403042?ie=UTF8&frombrowse=0&rh=k%3Asound%20machine&page=1

I turn it on "summer night" and it usually lulls me to sleep pretty fast.

But, for a CD I would try something like this:

http://www.walmart.com/catalog/product.do?product_id=1871183

Usually they are near the candle section at Wal-Mart.
I have not had a good sleep in MONTHS I may only be 12 years old,b ut I need to get up at 4 in the mourning so I can take a shower, eat, and other stuff. I have tried taking a hot shower before bed, I still feel tired after I got 8 hours. I tried a lot of stuff and none of them have worked so I was going to try relaxation cds, but I dont where to get them, what ones are good, and how much they cost!

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