SleepScript

A minimalist, interactive Windows Shutdown Timer, written entirely in pure Batch (.bat).

It lets you automatically power off your PC after a given number of hours — with a live countdown and a system-wide timer that can be checked or canceled from any other Command Prompt window.

I originally wrote it so I could fall asleep to YouTube or podcasts without leaving my PC running all night. Windows hides its sleep options pretty well, so this script does the job instead.

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🚀 Features

• 🕐 Custom timer (in whole hours)
• 🧮 Live console countdown (hh:mm:ss)
• 🧠 Uses Windows' built-in shutdown /t timer (globally visible)
• 🔁 Real-time updates every second
• 🧰 Cancel anytime From another window;

  shutdown /a

ℹ️ The CTRL+C auto-cancel helper relies on Windows PowerShell. If PowerShell is unavailable, the script will warn you and CTRL+C falls back to the previous manual behavior.

💻 Usage

1. Download sleep.bat or copy the code into a new .bat file.
2. Double-click the file to launch it.
3. Enter how many hours you want your PC to stay on (whole numbers only).

Example prompt:

How many hours from now should the PC shut down? (e.g. 1, 2, 5): 3

The window displays a live countdown like this:

Shutdown Countdown
Remaining Time: 02:59:45   (hh:mm:ss)
Cancel: CTRL+C  or from another window: shutdown /a

🧪 Testing

The script targets Windows' Command Prompt. To verify it manually:

1. Open cmd.exe on a Windows machine.
2. Run sleep.bat (double-clicking works too).
3. Provide a small value such as 1 to confirm the countdown and the system shutdown /t timer are set.
4. Press CTRL+C to verify the script automatically issues shutdown /a (you can still cancel from another window with shutdown /a).

Automated testing is not available for Batch files in this repository, and the script cannot be executed on non-Windows environments such as this Linux container.

🔍 Check or cancel the timer

You can check or cancel the active shutdown timer anytime in another Command Prompt window:

shutdown /a

• If a timer was active → it’s canceled.
• If no timer was running → you’ll see this message:

The system shutdown cannot be aborted because no shutdown is in progress. (1116)

Enjoy the rest — your PC will turn itself off when the countdown ends. 😴