Sleep Manager

Keep your Mac awake for downloads, presentations and focused work, with timed sessions and battery safeguards.

Free

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Download for Mac.

Downloads open after the final checkout and release checks.

See Sleep Manager in action

Sleep Manager — history with demonstration data — Session history · Demonstration data

Sleep Manager — profiles with demonstration data — Profiles · Demonstration data

Sleep Manager — rules with demonstration data — Rules · Demonstration data

Sleep Manager — session with demonstration data — Keep-awake session · Demonstration data

What you can do

Timed, until-time, indefinite and running-app sessions
Separate controls for idle system and display sleep
Menu-bar status, countdown, favourites and quick controls
Battery threshold and mains-only safeguards
Six editable task profiles, favourites and profile import/export
AND/OR automation rules with priority, grace and dry-run testing
One-off and recurring weekly schedules in local time
Sleep Inspector with your session’s reason and available macOS reports
Conservative, optional read-only external-drive activity
Local searchable history and CSV export
Start, stop and status actions for Shortcuts
Optional notifications and launch at login
Skippable erehwon welcome, startup tour and numbered instructions
System, Light and Dark appearance

CompatibilitymacOS 14 or later · Apple silicon and Intel

AppearanceSystem, Light and Dark

Getting startedSkippable tour and optional numbered steps

Start in three simple steps

Choose a duration, end time or running app.
Choose your display and power policies, then start.
Stop at any time from the app or menu bar.

You can hide numbered instructions and switch off the welcome and startup tour independently in Settings.

Privacy and practical limits

Power observations, app and device signals, profiles, rules and session history stay on your Mac. No account, app analytics or cloud service. Optional drive activity reads up to 4 KB of a user-selected file without modifying it. Notifications and launch at login are optional.

Controls idle sleep only; it does not bypass lid-close sleep, screen locking, manual Sleep or critical battery protection. Schedules require Sleep Manager to be running and do not wake a powered-off Mac. macOS reports may be incomplete. Drive caching and firmware can limit the effect of read-only activity. Wi-Fi identity, Bluetooth and VPN triggers are excluded.

App privacy details · Get help

This free app has no subscription or in-app purchase.

Features in practice

The feature list describes the available tools. These examples explain how they support a practical workflow, what to review and where the limits matter.

Keep a specific task awake

Timed, until-time, indefinite and running-app sessions help manage idle system/display sleep for a chosen purpose. Stop a session from the app or menu bar when it is no longer needed.

Set power-aware limits

Battery thresholds and mains-only policies help avoid leaving an unsuitable session running. These controls do not prevent shutdown, forced sleep or every system interruption.

Reuse and test your policies

Editable profiles, weekly schedules and AND/OR rules support repeated tasks. Priority, grace periods and dry-run testing help inspect a rule before relying on it.

Understand recorded sessions

Sleep Inspector, local history, exports and available macOS reports help investigate observations. Optional external-drive activity is read-only and conservative, not a guarantee that every active workload will be detected.

Use the compatibility, access and limitation information on this page when choosing a workflow. Sample screenshots illustrate the app; their records and measured results are not a scan of your own Mac.