SweetDreams is an application which gradually lowers the volume of YouTube videos to 0 over a set period of time. All you have to do is paste the URL of a YouTube video in the input field above and designate the time you wish the volume to reach 0. This application is perfect for users who enjoy falling asleep with noise but don't want to fiddle around with the volume of their devices. Currently this application does not seem to work for Apple products.