Pzizz will lull you to sleep with some really soothing music that fades out over time. This app’s appearance alone is calming! As for the music, think of an incredibly soothing, movie-style soundtrack that you set to fade out after an hour or so to help wind you down before you go to bed. It also offers narration in both male and female voices, but if you find that creepy (which you will), you can shut it off. It also lets you use its music in bursts as a "focus" setting.