<font color="green"> [b] I have fibromalagia which often has a sleep disorder comorbid, I also have migraines. My doctor put me on a low dose of noretripline and it does make a difference for sleeping and the quality of sleep I get. I have used nature cds for surf and/or thunderstorms or a babbling brook to help me sleep. I had to stop those cos if I couldn't play my cd I couldn't sleep. I have bought both my girls sound machines from Walmart and Walgreen's. They were under $20 and worth twice the cost. </font>