For those who have difficulty waking up in the morning would definitely want to take a look at this Youtube video below.
If you have a large air cylinder, computer-controlled valve, lots of programming code and approximately 4 years to spare, you could probably built one up yourself.
Perhaps some would prefer being woken up by a morning kiss instead?
Source: Via TechEBlog
This post is tagged Alarms, World's Biggest Alarm Clock

I need one of those.
Still wouldn’t wake Nayuki.
@Aya: LOL! Nayuki is really a deep sleeper isn’t she ^^;