Put my PC into sleep mode for dinner, it took longer than I thought it would (about 1 hour) and when I came back to my desk my monitor said "no signal." So I moved the mouse and the the CPU kicked on along with my led case fans so I thought "weird, but ok..." I waited for about 1 minute while my screen never came back on. So I held the power button down and powered the thing down. I immediately pressed the power button and the whole thing came to life again -- SANS SCREEN
. I then moved my mouse around and the cursor showed up all by its lonesome (yes, black screen + cursor) and it got stuck. Forced it to power down a second time and waited a few minutes to power it up again. This time I got the mouse cursor all by itself on a black screen, however this time the cursor would move, but still only black behind the cursor. Third forced power down and restart got me to a Safe Mode option screen, I selected to start it normally and everything is back to "normal" -- I think.
My computer itself is only 4 days old and that was the first and last time I'll ever use sleep mode.