Nature lite

In the Nature you can listen large collection of nature sounds recorded around the world, you can listen birds in Brazilian forest or Baltic Sea waves crashes or Baby seal calling his mom on arctic ice or emperor penguins sitting with their chick in Antarctic or rain drops in jungle forest or thunder near city or busy subway carriage with people in Australia or air traffic controller talk with pilot in Heathrow airport or New York busy train from Brooklyn or snowy day in the east Europe or construction site on sunny day or highway near beautiful forest or fly in airbus or boats on calm water in Roscoff port or night city after rain, all this sounds to dive in calm atmosphere for good dream.

Nature app works in background also it has auto-off timer.
And little simple alarm-clock