Ive used various things that produce sleep sounds to some success over the years. I stumbled across this app after I couldnt find what box I packed my sleep sound machine in and needed something to help. I am very glad I came across this app, unbelievable that it is only $.99. The mix of the sounds (I use Rain In City) and the binaural sleep tones that you can add in really help cancel outside noises and let you drift into sleep. I set mine for 60 minutes and if I wake up during the night just turn it on again and I go right back to sleep. Great app!