Everyone oversleeps.
The Lolland University is committed to improving the world we live in. One of our 100000 mottos is: Invent Better Alarms. So we did.
1. The Cockroach melter
Refer to the diagram above. Enclosed in a marvellous chamber made of sugar is a very hungry, very black, very ugly cockroach. Now, the chamber made of sugar is marvellous because it is made of a special type of sugar that dissolves after 8 hours in an average human mouth. It is also marvellous because it does not exist, but we'll leave that for another day.
So, the chamber made of sugar is inserted into your mouth just before you sleep. After 8 hours, the sugar dissolves and releases an active, pissed cockroach into your mouth. You might imagine that you will wake up soon after that.
What if you want to want to sleep less than 8 hours? Simple! Say you want to sleep for 5 hours. Just keep the contraption in your mouth for 3 hours at some earlier time. If you want to sleep for more than 8 hours, you are lazy and useless, and probably a Lolland writer.
2. The Early Bird method
Principle: the well known Einsteinian postulate:
The Early Bird catches the Worm.

Consider all the birds in the universe. They are divided into Early Birds and Late Birds (the second category, conveniently, includes both dead birds and birds that just get up late in the morning). You want to be woken up early in the morning, a time of day when the Early Bird is active.
But the Early Bird is a greedy creature - it is only interested in The Worm.
How do you know which The Worm is? You don't.
So, you collect all the worms in the world and spread them on your body before you go to sleep. Leave the window open. In the morning, the Early Bird will fly in. Since all the worms in the world are on your body, one of them must be The Worm. The Early Bird will identify that one, and will perch on your body and peck at it. This will disturb you and wake you up.
We got a lot of emails on this one, claiming that nobody would be able to go to sleep with all the world's worms on his/her body. We have an answer. If you can't sleep, you've automatically accomplished your original aim - to be awake early in the day!
3. The String-dynamite (do it yourself) method
What you need: String (lots of it), dynamite (inferior version, buy from an Indian roadside market)
Take 1 metre of the string and burn it. Record the length of time it takes for it to burn from end to end. From this, calculate how many metres of the string will burn completely in 8 hours (or however long you wish to sleep). Cut off that length of string and use it as your fuse. Light just before you go to sleep.
You must have an inferior type of dynamite so that you do not kill any members of your household (assuming, of course, that this is a bad thing).
4. The Ask Chuck Norris to wake you up method
This is simple and self-explanatory. You ask Chuck Norris to give you a wake-up call. As soon as your ears hear his voice, you will wake up in shock and awe. There is one small problem though - if you don't wake up, he might roundhouse kick you and kill you, and then you'll never wake up again.
Thus, we have also kept more non-lethal alternatives for you in mind. You could use Salman Khan to give you a wake-up call (he'll do it with a speeding car), Megan Fox (only, you might think she's part of your dreams, she appears in them regularly anyway) or George Bush (he'll do it with a couple of nukes).
5. However, this is the only thing that'll actually work. Download
this and use it.