How to get up in time:

This is:
One of my friends missed an important meeting. From the evening put on the smartphone an alarm program, which offers to solve a sufficiently complex example to stop the signal. Set the right time and go to sleep. I woke up three hours later. The phone was lying next to it - the cover separately, the battery separately. The body solved the task before it, without resorting to complicated calculations.

And don’t say afterwards that Apple is a pony... I’t sleep with an iPhone.)

My child with an iPhone is asleep as a firefighter, not even his ear moves on the alarm clock. But there is a means and stronger.
If you need to wake up, when I am already at work, I persistently call the city phone and pick up my grandmother (on her phone, for some reason, she also doesn’t wake up). And not in time awakened grandmother you will not play anymore.