Mac takes 30 seconds to go to sleep
After a power failure, my Intel iMac now takes 30 seconds to go to sleep. I'm assuming that this is an application that is failing to close and then the OS forces the issue.
Even when there are no applications open and after a fresh shutdown-restart, the problem persists. Force Quit window is empty (no apps running). It probably is an app that runs on startup that is causing the problem.
How do I go about figuring out which one is the culprit?