Good app to put my computer to sleep at a scheduled time?

I could not really find what I was looking for, with the search.

I used Daxtar's Shutdown Timer so far but I have just discovered the sleep function does not work with newest Windows 7 updates. Or at least with my machine/the updates I added; instead of putting my computer to sleep it just logs off (then it runs the whole night; which I do not want).

The solution does not necessarily have to be portable; just more convenient than Windows 7's built-in solution.

Thanks in advance