Check this out. It's a must hear. I listen to it when I sleep which has healing/restorative effects. It's the sounds of the Schumann Resonance, which at 7.83 Hz is the sound of the Earth's magnetic field, and will align you with it. If you fall asleep to it, it will have a healing effect and align your mind/body with that of the Earth's magnetic field, so that you will wake up feeling centered and refreshed. You can download it for only $2 from Amazon.com and put it into your smart phone to listen to it anytime you want to relax or sleep. Check out the many stellar reviews for it too.
http://www.amazon.com/Schumanns-Resonan ... 002B0LJMK/