Sleeper is a small countdown timer for Nokia N9 and N950. Slepper is very simple but it’s very useful for people who love listen to music when falling asleep. The main feature of the application is to stop the playback music. Users can spin the dial to set the timer and start the countdown. The music will stop when countdown reach 0. Users have an option to close the app after finished. They can also use the app as a normal countdown timer for any task.