Cost / License
- Freemium
- Proprietary
Platforms
- Mac



InsomniaT is described as 'This is a kernel extension and clients that allow the MacBook to disable sleeping when the lid is closed. MOUNTAIN LION IS NOT SUPPORTED' and is a prevent sleep mode app in the os & utilities category. There are more than 25 alternatives to InsomniaT for a variety of platforms, including Mac, Windows, Linux, Flathub and Homebrew apps. The best InsomniaT alternative is goguma app, which is both free and Open Source. Other great apps like InsomniaT are Amphetamine, Stimulator, caffeinate & disablesleep and Caffeine for Mac.



SleepTime is a light-weight app that lives on your menu bar, letting you easily set a timer to put your Mac on sleep automatically after a specified time period you choose.



Keep your Mac awake only when needed, with a minimal control surface built for focused workflows.




ScreenWakeUp is a free, browser-based tool that keeps your screen from sleeping or locking. It uses the modern Screen Wake Lock API — nothing to install, no admin rights, no account. Open it in any browser on Windows, macOS, Linux, ChromeOS, Android or iPhone and click one...

Close the lid. Keep coding. Hold My Lid keeps your Mac awake while Claude Code, Codex, and your other agents finish the job — lid shut, in your bag.

A tiny macOS menu-bar app that keeps your Mac running even with the lid closed — so coding agents (Claude Code, Codex, etc.) keep working while you move around.

macOS CLI that keeps your Mac awake with the lid closed on battery, so a local Codex, Claude Code, or Cursor session keeps running.

Lightweight, portable, and very practical application that displays and locks the computer idle time, falsely informing the system about user interaction.
