Simple solution . Buy a larger clock and drill a small hole where the hour hand points when the appropriate time arrives. Place a wire through the hole and use some hot glue to secure it into place. Next take a wire and attach it onto the Hour Hand. These two wires are now connected to a suitable battery or other electrical terminal and can be hooked up to a large variety of objects such as Explosives or High Voltage objects. Then set Your clock and go to sleep knowing that in the morning a large charge of C4 will go off under Your bed and wake You up . Since You asked I feel You should know.

Go to bed earlier and you wont have as much problem waking up. You could program your smart phone to play loud arousing music.

I have a hard time waking up, so I need an alarm clock that can do the job.

My ideal clock would be one that adapted and learned how to wake me up, but the technology just isn't there yet. Maybe in ten years.

My current clock is a sony dream machine, the basic model.

What alarm clock is powerful enough to get me out of bed?