Even in a sleep state, your brain continues to register and process sounds, meaning random noises are likely to activate your restless brain, waking you up. Sounds as low as 30 decibels can affect your sleep quality – that is the equivalent of a whisper! Studies show that white noise and soft sounds help you fall asleep and stay asleep! The RCA White Noise Machine and Sound Soother has 10 pre-loaded sounds: white noise, waves, rain, brown noise, pink noise, campfire, Canon in D, Clair De Lune, Gymnopedie No. 1 and Greensleeves. Improve your quality of life by falling asleep and staying asleep longer by masking unwanted sounds.