If you are, you might want to try listening to a few of these streams.
Bluemars has 3 different "channels" to choose from, my favorite being Cryosleep. This one relaxes me and knocks me out rather quickly. I highly recommend it.
The Drone Zone is another great station you can check out. It can be found at the SomaFM website. They have many great stations to choose from - I find myself listening to Groove Salad quite a bit during the day.
I've always liked ambient music and was drawn to it at an early age. The band that started it all for me was Tangerine Dream. They were pioneers of the genre. Brian Eno is also one of my favorite ambient artists - he's basically considered the father of the movement.
The average listener may feel that the music is repetitious and boring. In order to appreciate ambient music properly, it should be listened to in the less active periods of our time - e.g. meditation or sleeping. It was designed with this in mind, and it can bring a tremendous calm feeling over you (if you allow it to.) The real treat is to listen to it through a good pair of headphones, and just let yourself go with the flow. Let the music guide you on your very own journey.
There are many streams out there, but these are my favorites to listen to. If you have your pc by your bed, have a dedicated hardware media player, or some other means of listening (ala FM stereo transmitter, as I do,) give them a try. They may help to relax you into a nice deep sleep.