Insomnia

A premium, ultra-minimalist macOS Menu Bar utility designed to keep your Mac awake on your own terms.

Overview

Insomnia is a premium, ultra-minimalist macOS Menu Bar utility designed to keep your Mac awake on your own terms.

Features

Pure Menu Bar Experience — Runs invisibly in the status bar with zero Dock clutter.

Intuitive Visual UX — Features a gorgeous central Hero Card with an animated Eye icon that opens (eye.fill) when active and closes (eye.slash) when inactive.

Versatile Session Controls — Easily trigger Indefinite sessions, custom Timed countdowns, or set specific 'Until Time' parameters using beautiful native glassmorphic selectors.

Live Countdown — A fully reactive, ticking countdown timer shows exactly how much awake time is remaining before your Mac safely returns to its default sleep cycle.

Smart Sleep Prevention — Uses native IOKit assertions (NoIdleSleep + NoDisplaySleep) to keep your Mac awake reliably. The same technology used by Amphetamine and Caffeine.

Dynamic Menu Bar Icon — The eye icon changes states:

• eye.slash (dimmed) — Mac can sleep normally
• eye.fill (bright yellow) — Mac is being kept awake

Requirements

• macOS 13 (Ventura) or later
• Apple Silicon or Intel Mac

Installation

1. Download the latest release from the Releases page.
2. Move Insomnia.app to your Applications folder.
3. Open it. The eye icon appears in your menu bar.
4. Click the eye to open the panel. Tap the hero card to activate.

Build from Source

git clone https://github.com/Ardshot/Insomnia.git
cd Insomnia
./build.sh

Then open Insomnia.app from the project directory.

How It Works

Insomnia uses IOKit power management assertions to prevent the Mac from sleeping:

• kIOPMAssertionTypeNoIdleSleep — Prevents idle sleep (system stays awake)
• kIOPMAssertionTypeNoDisplaySleep — Prevents display sleep (screen stays on)

Project Structure

Insomnia/
├── Package.swift
├── Sources/
│   └── Insomnia/
│       ├── App.swift              # @main + AppDelegate (status bar, panel, bindings)
│       ├── Info.plist             # LSUIElement = YES config
│       ├── Models/
│       │   └── AppState.swift     # Observable app state
│       ├── Services/
│       │   ├── PowerManager.swift     # IOKit assertion management
│       │   ├── SessionManager.swift   # Session orchestration (app/file timers)
│       │   └── TimerManager.swift     # Background session timer
│       └── Views/
│           ├── MenuPanelView.swift    # Main dropdown panel
│           └── Theme.swift            # Colors, glass styles
└── build.sh

License

MIT