gnome-shell-extension-hibernate-status

Gnome Shell extension that adds a hibernate/hybrid suspend button in Status menu.

Originally developed by @arelange and then @p91paul. Now maintained by @slaclau.

Supports GNOME 45, 46, and 47.

FAQ

Hibernation does not work

Try launching from your terminal

systemctl hibernate

If it doesn't work, it means hibernation is disabled on your system. Please see:

https://askubuntu.com/questions/1034185/ubuntu-18-04-cant-resume-after-hibernate/1064114#1064114

or

https://help.ubuntu.com/16.04/ubuntu-help/power-hibernate.html

Hibernation button does not show up, but systemctl hibernate works

If you are running Ubuntu, try putting

[Enable hibernate in upower]
Identity=unix-user:*
Action=org.freedesktop.upower.hibernate
ResultActive=yes

[Enable hibernate in logind]
Identity=unix-user:*
Action=org.freedesktop.login1.hibernate;org.freedesktop.login1.handle-hibernate-key;org.freedesktop.login1;org.freedesktop.login1.hibernate-multiple-sessions;org.freedesktop.login1.hibernate-ignore-inhibit
ResultActive=yes

into /etc/polkit-1/localauthority/10-vendor.d/com.ubuntu.desktop.pkla

Otherwise check for similar settings for your distribution. Credit: #41 (comment)