A few months ago, I followed the following wiki and was able to have my Dell XPS 13 hibernate if it was in standby for 2+ hours, link below:
It appears something has changed, and now my laptop only goes into standby ONLY, and never enters into hibernate. I have double checked all the settings, and everything APPEARS to be set up correctly. Was there any new packages or updates (systemd had an update recently) that might have broken this feature for me? Also, to add to the troubleshooting process, I also had to reinstall TLP and TLP-rdw recently…if that could have caused this as well. Thanks in advance for all of your time and help, it is greatly appreciated!