‘Pink noise’ may help sleep, improve memory Posted on August 10, 2017 by Los Angeles 1 Los Angeles Los Angeles News & Search 1 News - 1 eMovies - 1 eMusic - 1 eBooks - 1 Search Search for: Pink noise is a variation of white noise that may be more effective at helping people fall asleep as well as improve their memory. 1 Los Angeles Los Angeles News & Search 1 News - 1 eMovies - 1 eMusic - 1 eBooks - 1 Search Search for: