Preventing windows 10 laptop computer from going to sleep?

[rexmism]

Hello,
I'm trying to run a program overnight, but my laptop keeps going to sleep after about three hours even though I have it plugged in and set to not sleep (all four settings under Windows 10 sleep settings). Am I missing a setting, or is there any command I can use in my python script to keep the computer active so it won't sleep?
Thanks!