Safety
I stay awake,
but I never doze at the wheel.
Awake, but sensible.
Battery floor
Sleeps if the battery hits the minimum you choose.
20%
0%
Auto-sleep floor
100%
Time limit
A cap on hours awake — one for battery, another for the charger.
Battery
2h max
Charger
No limit
Heat guard
If it gets too warm, it goes to sleep. No questions asked.
Normal
Fair
Serious
Critical
macOS thermal pressure
Sleep tripwire
Always restores
Quit the app, or it crashed? Normal sleep comes back by itself.
pmset -a disablesleep 0
✓ Native sleep restored
Guaranteed on SIGTERM, clean exit or crash
And there’s
more where that came from.
What I touch
(and what I don’t).
pmset -a disablesleep 1
pmset -a disablesleep 0
pmset schedule wake …
pmset schedule cancel wake …