This Sound Therapy System is a great natural sleep aid with natural sounds like ocean surf, thunderstorm, summer night, stream, rain and more. It has a 30-, 60-, 90- minute auto shut off and includes headphone jack. A must if you live in any big city!!

"Sleep soundly with our amazing sleep sound machine! Based on more than 23 years of scientific research, our Tranquil Moments Sound Therapy white noise machine is a natural sleep aid that will help you achieve deeper states of sleep, relaxation and renewal. This innovative sleep sound machine uses five nature soundscapes and seven engineered sounds developed by the Center of Neuroacoustic Research. A Brookstone exclusive, our white noise machine works like a dream! A great natural sleep aid, Tranquil Moments plays sounds based on Delta, Alpha, or Theta brainwaves?coaxing your brain to ?match? these frequencies and enter healthier states of repose. Choose a range of relaxing sounds, from a summer chorus of crickets to authentic NASA recordings. Sleep easy!"

A great natural sleep aid, Tranquil Moments plays sounds based on Delta, Alpha, or Theta brainwaves—coaxing your brain to “match” these frequencies and enter healthier states of repose. Choose a range of relaxing sounds, from a summer chorus of crickets to authentic NASA recordings.

This makes me think of Berger's frog machine on "Sex & The City"...in a good way...even though I despise Berger... (via John_and_Rose)