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Power & sleep

Never sleep: keep your Mac awake with the lid closed

Mainspring 3.3.1 · 2 min read
In the appHome›Never sleep

Normally a MacBook sleeps the moment you close the lid. Never sleep keeps it running — handy when it's docked to a display, finishing a download, or sharing files. It stays on until you switch it off.

Turn it on

Two controls change the same setting — use whichever is closer:

Star it to put it in the menu bar, or include it in a scene.

Turn it off

Hover over Applied on the Never sleep card and click Revert, or flip the switch in Browse all › Power. While it's on, it's listed in On now.

What it changes

It sets macOS's disablesleep power setting to 1, and switching off sets it back to 0. That stops the whole Mac from sleeping, not only when you close the lid — though your display can still turn off on its usual timer.

It's a system-wide setting, hence the ADMIN chip. The helper Mainspring's installer sets up makes the change without a password prompt. If the helper isn't there, macOS asks for your administrator password instead; cancel, and nothing changes.

A closed laptop that's still running can get warm, especially in a bag. Switch Never sleep off before you pack up.

Never sleep or Keep awake?

Never sleep is a lasting setting — it stays on until you turn it off, and needs admin rights. Keep awake is a timer: it holds off sleep for 30 minutes, an hour, two hours or a time you choose, then ends by itself, with no admin rights needed.

Try it yourself

Everything in this guide is in Mainspring's free trial — no account needed, and every change can be undone in one click.

Try Mainspring free →

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