"Brown noise, or red noise, is unique for its deep bass-heavy tones," Shah explains. "Its low-frequency focus creates a sense ...

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 ...

These "colors" of noise provide a visual metaphor to help ... "Everyone will react differently to different sounds," explains Shah. "Some people may find white noise helps them to focus or sleep ...

but the noise from the Rumbler is closer to Red or Brownian Noise. The different colors of noise have specific definitions, but the Rumbler’s output is really just white noise that has been put ...

but the noise from the Rumbler is closer to Red or Brownian Noise. The different colors of noise have specific definitions, but the Rumbler’s output is really just white noise that has been put ...

But what sounds or frequencies are best suited to help you sleep? Different noise colors have unique benefits, depending on whether you're a light sleeper, an insomniac or something else entirely.