It is called the “alarm clock from the experts” and it won’t take you long to see why. The app first logs into your location and then you can set a bedtime as well as well wake-up alert. You can add music for both ends of your sleep—maybe a lullaby at one and a Freddy Mercury at the other. You can also add different alarms for specific days, say for a whole week. This will make the app very popular among frequent travellers. It also records the hours you slept, if you were thoughtful enough.