Put Mac mini to sleep after X minutes of inactivity?

[thebart]

Mac M1 mini, Sonoma.

How do I put my mac to sleep after x minutes of inactivity, independent of monitor sleep, which is set to 3 mins. Obviously, I want a much longer interval to put the mac to sleep.

This seems simple but I can't find any way to do it. Googling turned up solutions that no longer apply.

thanks in advance

 

[Basic75]

Open Terminal.app and enter

man pmset

 

[thebart]

Thanks. I tried

sudo pmset -a sleep 5

It did nothing. Then

sudo pmset -g
System-wide power settings:
Currently in use:
 disksleep            10
 powernap             1
 womp                 1
 networkoversleep     0
 sleep                5 (sleep prevented by powerd, coreaudiod)
 Sleep On Power Button 1
 ttyskeepawake        1
 tcpkeepalive         1
 autorestart          0
 standby              0
 displaysleep         3

Looks like sleep is prevented

 

[thebart]

I must have had an app holding on to an audio device without playing any sound. That has stopped and now the Mac can go to sleep



They have a whole mostly empty section Settings > Energy saver. I don't know why they couldn't have put this there

 

[thebart]

I updated to 15.1 and now the same setting does nothing. pmset -g shows nothing is preventing sleep. Ugh