HiVizMan - perhaps your magic PC charms will coax my CHV out of sleep as well?
I have had the same issue for as long as I have had my CHV - my pc will go to sleep (front led light blinks) but the water pump / lights / power supply remain on. I can't wake the unit with mouse or keyboard. There are actually two states I think. The first which allows the monitor to sleep, and wakes with mouse or keyboard if activated within a certain amount of time (no blinking led), and the longer period sleep which will not wake (blinking led).
I think the real issue is the power state not shutting down. I have actually experienced some random times when it did fully shut down, and woke, but I can't replicate it. Any advice for testing?