This contains all frequencies in equal measure that sound like a heavy waterfall or high fan to help get a nice, solid sleep.

Getting a healthy night's sleep ... white noise machines are engineered to produce a sound with all frequencies, there are natural sounds that also do the same thing, such as falling rain or ...

Two years ago, 13-year-old Clarisse Poon was looking for relaxing music to help her sleep, but the “deep sleep” music online was too distracting for her. That was until the student came across ...