Add Yahoo as a preferred source to see more of our stories on Google. Lectrofan makes a small bedside noise machine that emits a variety of different "colors" to help you sleep. If you need the whirl ...

Ever wondered why white noise is white? It's not the only colour of noise you can get. There are a handful of others too -- which are used in a variety of different situations, including acoustics ...

If you're struggling to sleep, there are certain sounds, like those from white noise machines, that can help block out unwanted noise and lull you to sleep at the same time. Though you've likely heard ...