Default Power Mode and Hibernation Options
On a Mac, “hibernatemode 3” is the default sleep mode for Mac laptops, where the system stores a copy of memory to the disk while still keeping the memory powered during sleep, while “hibernate mode 25” is a full hibernation mode that completely powers down the memory, resulting in longer battery life but slower wake times; you can only access “hibernate mode 25” through the terminal command “pmset” and it is generally not recommended for most users.
Check Current Power Settings
To see what is your setting, please go to Console and type command: pmset -g
ondrejkrehel@ondrejs-mbp-2 ~ % pmset -g
System-wide power settings:
Currently in use:
standby 1
Sleep On Power Button 1
hibernatefile /var/vm/sleepimage
powernap 1
networkoversleep 0
disksleep 10
sleep 1 (sleep prevented by powerd, sharingd)
hibernatemode 3
ttyskeepawake 1
displaysleep 2
tcpkeepalive 1
lowpowermode 0
womp 0
Changing Hibernate Mode to 25
Change hibernatemode to 25 by command: “sudo pmset hibernatemode 25”. You need sudo as this needs to be done as root.
ondrejkrehel@ondrejs-mbp-2 ~ % pmset -g
System-wide power settings:
Currently in use:
standby 1
Sleep On Power Button 1
hibernatefile /var/vm/sleepimage
powernap 1
networkoversleep 0
disksleep 10
sleep 1 (sleep prevented by powerd, sharingd)
hibernatemode 25
ttyskeepawake 1
displaysleep 2
tcpkeepalive 1
lowpowermode 0
womp 0
Reverting to Default Settings
The new setting is now 25, and you can always change it back to default value 3 if you think Mac is slow to wake up.