NoSleep
NoSleep is a utility for macOS that prevents your Mac from automatically sleeping or entering idle states. It keeps the display and processor awake according to user-specified rules, useful for presentations, long-running tasks, downloading large files, or any situation where you need continuous system availability without manual intervention. The app sits in the menu bar and offers simple controls to toggle sleep prevention on and off, sometimes with timer-based options.
AI Recommendation
1 suggestionNoSleep has been discontinued and there is no native Apple Silicon build, which means it will stop working entirely when Apple removes Rosetta 2 in macOS 28 (September 2028). Since the project is no longer maintained, an update is unlikely. The good news is that there are several actively developed native alternatives. Amphetamine, a free Mac App Store app, is the most popular replacement — it provides the same core functionality (preventing sleep on demand, with menu bar control and configurable rules) and is actively maintained with native Apple Silicon support. Caffeinate (free, open-source) is another lightweight option if you prefer minimal UI. If you need more advanced power-management features, check the full list on AlternativeTo to find a tool that matches your specific workflow. Making the switch now gives you a sustainable solution well before the September 2028 deadline.
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