Alarm clock, why were you invented when you can't even wake me up?

I was late for class today..again.
D:
My lecturer isn't very happy about it.
These few days/weeks I really couldn't wake up
Today was worst.
Woke up at 9 when my class actually starts at 9

My alarm clock works amazingly fine
As in being able to wake my bro up who's sleeping opposite my room
Yea he was very pissed off
When the alarm clock just kept ringing
and SOMEONE doesn't even bother to press the snooze button

So he went into my room
I sorta..err..woke up?
(I don't know why but I'm sensitive to sounds of doors being opened)
And I had a feeling that he was gonna whack me
So I fast fast press the snooze button.
Then only he left.
And.
I continued my sleep.


My problem here is.
The alarm doesn't seem to be able to wake me up
It can go on ringing for I don't know how long
and I'm not bothered by it.
I can hear it.
But it doesn't feel like sound pollution to me.
Even my mum was annoyed
"ring so long d also didn't wake up!
whatz your alarm clock for?"

So,
I thought of a solution to solve this.
Buy another new alarm clock.
Went to gurney just now,
bought it.
A cheap looking one.
I actually thought of buying fourskin one.
Cuz it looks kewl~
but,
rm199??!
Yea I can't afford it cuz i'm not from a rich family!


Back to the main topic~
So...
yea I hope the alarm clock I just bought..
can wake me up~
S&J claims it rings the loudest in their shop.
Well..I got it tested there.
errr..
no comment.
so-so?