How can you force the computer (in this case a laptop [rMBP]) into the "hibernate" state where it writes the RAM to the HDD/SSD so that the battery can last for the advertised 30 days.
I know that this can be achieved by waiting 70 minutes (4200 secs) after it is in sleep mode (if you haven't adjusted the default time settings), but is there a way to force it into this state?
I am having wake problems, and want to test this state of waking from.