I should have clarified I don’t mean for the day, I mean for a week plus.
My server exists to run programs around the clock, including backups for live sites, so turning them off wouldn’t be appropriate.
I don’t have one. It’s just a tiny single board computer and an HDD running reasonably stable scripts every few hours and a couple of small server programs. Nothing it’s doing is critical, so in the rare case when something breaks, it stays broken until I fix it.