My computer wakes up at 5:59:39 every morning. How do I stop that from happening? For some reason my 2017 iMac running macOS 10.14.6 keeps waking up from sleep at exactly 5:59:39 AM every morning. If I look at the logs using pmset -g log at this time it consistently reports:

2019-11-07 05:59:39 -0500 Assertions            PID 77(powerd) Created UserIsActive "com.apple.powermanagement.wakeschedule" 00:00:00  id:0x0x900009fac [System: PrevIdle PrevDisp DeclUser kDisp]
2019-11-07 05:59:39 -0500 Assertions            Kernel Idle sleep preventers: IODisplayWrangler
2019-11-07 05:59:39 -0500 Notification          Display is turned on
2019-11-07 05:59:40 -0500 Assertions            PID 77(powerd) Created UserIsActive "com.apple.powermanagement.wakeschedule" 00:00:00  id:0x0x900009faf [System: PrevIdle PrevDisp DeclUser kDisp]
2019-11-07 05:59:41 -0500 Assertions            PID 77(powerd) TimedOut UserIsActive "com.apple.powermanagement.wakeschedule" 00:00:02  id:0x0x900009fac [System: PrevIdle PrevDisp DeclUser kDisp]
2019-11-07 05:59:41 -0500 Assertions            PID 77(powerd) TimedOut UserIsActive "com.apple.powermanagement.wakeschedule" 00:00:01  id:0x0x900009faf [System: PrevIdle PrevDisp DeclUser kDisp]


I don't understand what those log entries mean and searching for the terms in them hasn't yielded anything revealing so far.

In the Energy Saver system preferences, I have the following options enabled:


Prevent Computer from sleeping automatically when the display is off
Wake for network access
Enable Power Nap


In the "Schedule" settings the "Start up or wake" setting is disabled.

Why is my computer waking up? And what can I do to stop it?
You should use the Terminal command pmset -g sched to determine if there is any repeated wake from sleep scheduled or some other app/system service which has set a wake event.