One option missing in Energy Saver pane

[Racineur]

Hello, can someone shed some light on this please. My iMac 2013 has big problems waking up in the morning after being put to sleep. fro the night (suspend activity). Goggled it and interesting solutions came out but there's one strange thing. I cannot find the option "Prevent the computer from going to sleep automatically" on my System Prefs Energy pane. See attached pictures please. It's French but one can see the option is missing. 5 options are showing on a picture I took from the Web and only 4 options on the capture I took of my computer. It runs 10.13.16.
Thanks so much. Merci beaucoup.

 

[Weaselboy]

https://forums.macrumors.com/posts/27263998/

See my post at this link that explains. That option is gone on newer Macs.

 

[Racineur]

Thanks a lot. I did that. Now it's all lear. Have a good day.

 

[Eithanius]

Wait I don't understand...

Those 2 screenshots are from the same Mac...?

 

[Weaselboy]

Wait I don't understand...

Those 2 screenshots are from the same Mac...?

I believe the bottom one is a screenshot OP found online and is from an older Mac.

 

[Racineur]

Hello. Sorry fro the delay. The English one was found on web and the French one is from my iMac on High Sierra.