In my most recent travels I stayed in a hotel that offered a white noise machine as part of their package. I have heard about these devices that are able to produce subtle background noises like waterfalls or soft rushing waves in order to help you get a better nights sleep. I must say based on my stay and how well rested I was the next day it appeared to have worked quite well. So good in fact that apparently there was a thunderstorm that rolled through the area early in the morning and I did not hear a sound. While traveling on the road it can be tough to get to sleep because you are not in your own bed and having a sound machine that will play soft tones in order to help relax in order to get a better nights sleep is something that I may have to invest in.