Hibernation is normally thought of as a laptop feature — and
an old and obsolete laptop feature at that. One does not normally consider it
to be relevant in cloud settings. But, at the 2020 Power Management and Scheduling
in the Linux Kernel summit (OSPM), Andrea Righi argued that there may
actually be a place for hibernation on cloud-based systems if it can be
made to work reliably.

Source: LWN.net – [$] Hibernation in the cloud