Read more: Best White Noise Machines OK, let's dig into a bit of science. You can deconstruct sound waves into two components: All the different colors of sound vibrate at different frequencies ...

and their names are loosely analogous to the colors of light. For example, white noise emits all of the frequencies audible to human ears, just like white light contains all of the colors of light ...

There are various noise colors and all have unique benefits. The two most popular colors are white and brown noise, and each has qualities that will help you get to sleep. With our CNET expertise ...

Yogasleep created the white noise machine category with the 1962 launch of the Yogasleep Dohm, and the U.S.-built machine has been winning over reviewers and sleepers alike ever since. We can see why: ...