How do I force my MacBook Air into "hibernation" mode? I have a MacBookAir3,2 (late 2010) running 10.9.3.

I want to be able to force the machine to immediately go into "hibernation" mode, but it seems impossible.

The usual answer that I have seen is sudo pmset -a destroyfvkeyonstandby 1 hibernatemode 25 but when I sleep/wake my Mac with those settings, I am not asked for my FileVault password.

Additional Info:


Power Nap is disabled for Battery and A/C power
Fast User Switching is disabled
Preferences » Security &amp; Privacy » General » Require Password is set to “immediately”


I have run sudo pmset -a destroyfvkeyonstandby 1 hibernatemode 25 autopoweroff 1 autopoweroffdelay 14400 standby 1  but note that 'autopoweroff' and 'autopoweroffdelay' are both absent from my pmset settings:

System-wide power settings:
 DestroyFVKeyOnStandby      1
Active Profiles:
Battery Power       -1
AC Power        -1*
Currently in use:
 standbydelay         0
 standby              1
 womp                 1
 halfdim              1
 hibernatefile        /var/vm/sleepimage
 darkwakes            0
 networkoversleep     0
 disksleep            10
 sleep                180
 hibernatemode        25
 ttyskeepawake        1
 displaysleep         10
 acwake               0
 lidwake              1


Putting the computer to sleep, either by closing the lid or sudo shutdown -s now and then waking it back up within a minutes or two does not require me to enter my FileVault password, just my regular account password.

Is there a way for me to force the Mac to hibernate?
I had simmilar issue and it was because my Macbook Air was connected to charger. When I disconnected it before closing lid - Mac went to hibernation as supposed.

Then I've read on somewhere ( forgot source ) that Mac won't go into hibernation mode until you plug out all external devices ( USB etc. ) and disconnect power adaptor. When it's connected to power it won't go to hibernate under any circumstantes ( so it's better to shut it down if you have to charge it ).