Try listening to the sound of falling rain, the sound of wind rustling the leaves of the trees, or the sound of a rushing stream or cascading falls. These are all examples of white noise. These calming and mellow sounds can now be produced artificially through either white noise CDs or white noise machines.

Many of these products now saturate the market, and they do not come cheap. So before you decide to buy them, you should first visit forums and websites featuring white noise reviews. They can give you an idea which brands are good and which ones are not worth your money. Here is what to expect from white noise reviews:

Price comparisons. You will see whole range of white noise products from the cheap $8 CDs to the more complicated white noise machines worth hundreds of dollars. This is a good section to look into if money is a big consideration - this way, you immediately see which white noise contraptions you can readily afford and which ones you still need to save up for.

Comparison of specifications. White noise CDs and machines come at different prices because they have different capacities. In this section, you will find descriptions of how each white noise product compares to its counterparts. You will get valuable information about sound range, size, color, power, battery life (if applicable), and warranties, among others. Be sure to read the specs carefully - you may find that some cheaper white noise products are just as powerful as the more expensive "branded" ones. Why spend more for the same features?

Actual user comments and reviews. People who have actually used the white noise products discuss the strengths and weaknesses of the models. These are very good gauges of a white noise product's real-life performance. You can even email the people who contributed their reviews for further questions.