Last week I let my mid-2012 13″ MacBook Pro apply the latest update for Mac OS High Sierra, version 10.13.4. That, it seems, was a mistake.
Ever since that day, when I close the lid and let it sleep for more than a few minutes, it will crash on wake up. The only errors I see in the system logs are regarding com.apple.preference.displays.MirrorDisplays not starting properly. Looking online for the error message [“com.apple.xpc.launchd  (com.apple.preference.displays.MirrorDisplays): Service only ran for 0 seconds. Pushing respawn out by 10 seconds.”], I found a number of places reporting that it has been happening to them in various releases of High Sierra. In all the cases I saw, the errors are in the logs and the computer fails to wake up from sleeping.