Knoodles - just turning the sleep feature on in Energy Saver isn't a good solution for those of us who have file servers for which we either need to access files for just a minute or so or indefinitely. There's nothing more aggravating (and this is a old, mostly unrelated gripe) than the OS freezing up for a few minutes trying to look for a disk that you already know is no longer available. That's the kind of thing you get when you mount a disk and then it becomes inactive before you tell it to.

I myself requested the same sleep feature for another similar app that doesn't look like it's still being developed. I would love for this developer to add it.