Brett, is this still working for you? I'm seeing some random 'net comments with people saying it doesn't actually do anything for the last couple of macOS versions? Thanks in advance!
Caffeinate is pretty cool, and I finally uninstalled the trusty Caffeine after a while. But, I wanted an easier way to control it. I use Alfred, and I have the PowerPack, so, quite a while ago, I wrote a nice little workflow that will let you enable/disable it and set the preferences for just how you want to invoke it. If you're an Alfred user and want a copy of that workflow, you can find it here: http://www.packal.org/workf...
Remarkbox