Closed-Lid Mode is the only NoNap Pro feature controlled by the trial or license. Prevent Idle Sleep and Keep Display On remain available without purchasing.

What it does

When Closed-Lid Mode is on, your MacBook can continue downloads, renders, remote sessions, and other tasks after you close the lid. Unlike standard macOS closed-display use, NoNap Pro can keep the Mac running on battery alone.

Closed-Lid Mode asks macOS not to sleep solely because the lid is closed. It does not:

prevent shutdown, restart, a system crash, or power loss;
prevent the screen from locking or change authentication requirements;
keep Wi-Fi, VPNs, Bluetooth devices, external drives, or displays connected in every configuration;
force a third-party app to continue work if that app reacts to display or lid changes;
provide thermal protection or monitor the temperature of your workload.

Treat it as one part of a workflow, not a guarantee that an unattended task will succeed. Test important workflows before leaving the Mac unattended.

Battery safety is built in: when the battery runs low, NoNap Pro exits Closed-Lid Mode and restores the system sleep policy. See Is Closed-Lid Mode safe for my MacBook? for the threshold, power rules, and heat notes.

Trial and license

You can try Closed-Lid Mode free for 14 days on this Mac. Trial mechanics — how it starts, runs, and what happens at the end — are covered in Trial and license help.

After the trial, a one-time NoNap Pro license unlocks Closed-Lid Mode. Buy through the button in the app, then paste the license key from your receipt into Closed-Lid Mode → Activate. No subscription is required.

Starting a trial does not request administrator authorization or turn Closed-Lid Mode on automatically. Activating a license also does not change the current system sleep state. These remain separate actions so you can review each one.

System authorization

The first time you enable Closed-Lid Mode, macOS asks for an administrator password. NoNap Pro installs a narrowly scoped authorization rule that can only change and restore the relevant system sleep policy.

You can always turn Closed-Lid Mode off when NoNap Pro has permission to manage it—even if a trial ends or a license becomes invalid. From Settings you can also revoke the authorization; NoNap Pro restores normal sleep behavior before removing its rule.

The authorization is stored by macOS and may remain after you quit the app. This lets NoNap Pro turn the mode on and off without asking for a password every time. Revoking it does not deactivate a commercial license, and deactivating a license does not remove the system authorization.

Battery safety

On battery, NoNap Pro warns as the battery gets low and exits Closed-Lid Mode at the auto-exit threshold. The default is 20%, adjustable from 5%–60% in Settings. When external power is connected, low-battery auto-exit does not apply.

This is battery protection, not thermal protection. For long tasks, keep the MacBook on a hard, well-ventilated surface.

The threshold is evaluated using the battery information macOS reports. A rapidly falling battery, an unexpected shutdown, or delayed system reporting can occur before NoNap Pro completes its normal exit. Save important work and do not use the feature as a substitute for a reliable power source.

Displays and wake controls

Closed-Lid Mode forces idle-sleep prevention while it is active, so the Off / Timed / No Limit control is shown but cannot be changed. Turn Closed-Lid Mode off to choose another wake mode.

Keep Display On stays available because it may still affect an attached external display. NoNap Pro does not require or detect an external display before showing the option.

With no external display, there may be no visible effect after the lid closes. With an external display, macOS still decides display arrangement, mirroring, brightness, and whether the display remains available. NoNap Pro only maintains its display sleep-prevention request.

Turning it off

Open the NoNap Pro menu and switch Closed-Lid Mode off before packing the MacBook away. NoNap Pro restores the normal system sleep policy and releases the forced idle-sleep state.

If the switch stays on or an error appears, keep the Mac open and try turning it off again. Do not assume the system policy has been restored until the app shows the mode as off. See Troubleshooting if it cannot be cleared.

Compatibility

The system sleep policy is global and does not identify which app changed it. Do not run NoNap Pro alongside another tool that controls closed-lid sleep behavior; the apps may overwrite or misread each other’s state.