WillKings Enterprise Analog Twin Ball Clock Bronze Clock

You won't sleep through this alarm. Sometimes the old way of doing things is really better. There are lots of other alarm clocks available on the market targeted at heavy sleepers that require you to solve some kind of puzzle, or shoot a target, or retrieve some sort of flying propeller to silence the alarm clock. They all have exactly the same major flaw; they depend on you being able actually to hear the alarm and wake up first. They all are useless if you don't wake up to silence the alarm in the first place.