I love this app! I used to be such a light sleeper, slightest noise would wake me up. I started using this to help. I have noticed a difference, I use it at home and while I travel. Helps knock out surrounding noises that can keep you up. Some of the sounds are terrible, but I know what may work for some doesnt for me. So there is something for everyone. But all around great selection, and I am always finding new ones. I seem to do best with water noises, waterfalls, etc. And best of all, its free! Thanks