Great idea, bad follow through

I bought this app to help my four kids know when they can get up in the morning. Certainly was better than spending $40 on a clock that did the same...except:
1. You cant lock the iDevice and still see the moon/sun. This means its totally likely my kids will get up in the middle of the night (or in the morning) and grab said iDevice and begin playing with it - defeating the entire purpose.
2. The battery drain is obscene because the screen never times out. You really do need to leave it plugged in because, even with an iPad that had extensive battery life, it will be dead before the sun "comes up".
3. If you close out of the app, you need to set it back up every time - both for nap and bed. Not a HUGE inconvenience (its just a number wheel), but an inconvenience non-the-less.
Overall, $3.00 isnt awful but I would have rather known these three things before purchasing.

UltraBeige about Mr. MoonLight : Kids Visual Alarm Clock and Nightlight for Sleep Training