My computer running Artix does not seem to be waking properly from sleep some of the time, the fans will spin up however there is not display output or the PC won't respond to pings or ssh access. I don't think this is a user-land issue or a init issue as it was happening both under OpenRC and S6. In some research I did find reference to a elogind bug that made networkmanager not wake up and stay inactive(https://github.com/elogind/elogind/issues/280). I did try the fix in issue and I has not seem to have made a difference, however it could still be related. I'm not really sure where to continue looking for this issue, it is also hard to test as it is quite an intermittent issue, sometimes it might go for over a week without any fault then sometimes it happens multiple times per day.
Try this please:
https://forum.artixlinux.org/index.php/topic,6763.msg41150.html#msg41150
That is a post I did come across in my research, I have tried changing from
SuspendMode=deep s2idle
to
SuspendMode=s2idle deep
and it prevents the system from sleeping entirely.