# /etc/systemd/sleep.conf.d/10_default.conf
[Sleep]
AllowSuspend=yes
AllowHibernation=yes
AllowSuspendThenHibernate=yes
AllowHybridSleep=no
SuspendState=mem standby freeze
HibernateMode=platform shutdown
MemorySleepMode=deep
HibernateDelaySec=7200
SuspendEstimationSec=60min