The solution for my waking up problem is a website called Kuku Klok, combined with turning my speakers all the way up.

Note: of course this requires your computer being in the same room that you are sleeping in.

Using Kuku Klok

Once you load the page, you simply set the time you’d like to wake up:

Select the sound you want (previewing it helps to test if your speaker volume is up enough)

And then click SET ALARM.

The great thing about this website is that it will work even if your internet connection goes down after setting the alarm. (In fact you can use this site offline by doing File \ Save As \ HTML Complete).

Personally I think the Slayer Guitar sound is the best for waking me up.

Disable Other Windows Sounds

One problem you might notice is that Windows will sometimes make other sounds during the night which might interrupt your sleep… I recommend going to Control Panel \ Sounds and then setting the Sound Scheme to “No Sounds” on the Sounds tab (works the same in XP or Vista).

The only real downside is that now all my co-workers will read this article and start harassing me more when I’m late to work.

Use the Kuku Klok at kukuklok.com