the nature of sound

i purchased this little device a day ago and have used it only one night. The sounds of nature are best done in nature. One of the first rules of a true and real solitude is that of "Attunement" We do that best when we are able to leave our devices behind. However in the trickery of our minds, we can sometimes create a falsetto of natures sounds and derive the same effect. This sound machine may be used as a psychological tool to perhaps even help those with sleep disorders. Millions worldwide suffer from sleep deprivation and this remains a major medical issue in the USA. As for me, i'll just open a window and listen to the natural night-sounds.