This is one of the most fantastic apps I have ever had. I dont know where to begin. You can create your own sequence of gentle wake up sounds, ranging anywhere from birds to rain to city traffic. 750 beautiful soundtracks with no additional cost. Its easy to use and manage, fun even. It monitors your sleep and wakes you up when you are in light sleep before your set wake up time, leaving you refreshed, relaxed and energized. I have never felt better since I purchased this app.
Gummybear178 about Sleep Science HQ: alarm clock