Hi there, I got myself an iMac 27" just recently. I often use it to watch videos over VLC while falling asleep. Unfortunately I find the iMac awake every time in the morning, with only the display asleep. So basically I can hear that the iMac is still on and when I touch the mouse it is immediately on. Within the energy settings I have def set it up to sleep after 15mins. Still nothing happening. Anyone an idea what I could do? Cheers!