How to configure hibernate on macOS Monterey?

For the life of me, I cannot get macOS Monterey to hibernate on my 2015 MacBook Pro on battery power. Here is my pmset -g output while on battery:

% pmset -g
System-wide power settings:
Currently in use:
 lidwake              0
 autopoweroff         1
 standbydelayhigh     5
 autopoweroffdelay    1
 proximitywake        0
 standby              1
 standbydelaylow      5
 ttyskeepawake        0
 hibernatemode        25
 powernap             0
 gpuswitch            2
 hibernatefile        /var/vm/sleepimage
 highstandbythreshold 50
 displaysleep         1
 sleep                1
 acwake               0
 halfdim              1
 tcpkeepalive         1
 disksleep            10

No matter how long I wait, or by using pmset sleepnow, this does not hibernate. What am I doing wrong?