White noise is a sound which is claimed to mask other sounds that occur naturally in the environment. White noise has the same amplitude throughout its audible frequency range of 20 to 20,000 hertz. It is analogous to white light, which consists of every visible wavelength on the color spectrum. White noise machines are sound devices, which help build a more soothing bedroom atmosphere that promotes good sleep. These gadgets frequently provide ambient and natural sounds such as chirping birds and crashing waves in addition to white noise and other noise colors.
Global White Noise Sleep Aid Market: Restraints
Some drawbacks of white noise machines may hinder the growth of the global white noise sleep aid market. For instance, according to an article published in The Guardian on October 18, 2020, Mathias Basner, a professor from the University of Pennsylvania School of Medicine in Philadelphia conducted some research (published in journal Sleep medicine reviews) which concluded that white noise as sleep aid may do more harm than good, as it was found that white noise may disrupt the sleep. Moreover, he was concerned that the white noise does not let auditory system to rest overnight.
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