I thought I'd pin this for people that have trouble relaxing, concentrating and/or sleeping. It's working very well for me personally and I hope you're happy with it, too. Sleep All Night Long! With 8 Hours of Pure Pink Noise for Sleep, Relaxa.
Wonderful "pink noise" that works well for me . if you're bipolar (or just need to get some sleep at night) try it for yourself ~~ sweet dreams. Pink Noise: Pure Sound For Relaxation, Increased Concentration