This is a very funny and awesome app. Great for sleeping, relaxing, taking a nap, focusing, calming your mind, meditation, studying, blocking out background disturbances and providing soothing sound for your baby. You can sleep in noise of fan sound and it is irritating sound But this app is very helpful for You because it have very relaxing sound and animation of fan moving. Get a better sleep with Fan Noises For sleeping!. Fan prank will help you relax and get a wonderful night's rest.