I have been using an iPhone app called Ambiance for a long time, it even allows you to record your own sounds, works in the background, has a sleep and alarm mo

I have been using an iPhone app called Ambiance for a long time, it even allows you to record your own sounds, works in the background, has a sleep and alarm modes etc. The only down side is it tries to do too much, they have like a sound store and stuff, which is a cool feature but affects the simplicity. http://ambianceapp.com/ http://ambianceapp.com/