Caffeine is a free program and browser extension designed to keep your computer awake, no matter what. The app is easy to use, lightweight, and can help if you have problems with your PC locking or going to sleep.
As such, if you don't want your PC going to sleep and you can't get at the PC's power options to change its sleep settings, here's how to keep it awake with Caffeine.
1. How to Download and Install Caffeine
You can download the desktop version of Caffeine from the Zhorn Software website.
After downloading the ZIP file, extract the files anywhere on your computer and run the corresponding EXE file, depending on if your system is 32-bit or 64-bit.
Caffeine is a completely portable app, which means you don't need to install it on your PC for it to run. Once you run it, you'll notice the icon will appear on your toolbar.
As far as the desktop version of this program goes, that's it. Your computer will now stay awake, no matter how long you leave the system idle.
How to Use the Caffeine Browser Extension
The Caffeine browser extension might be more useful if you're using a system where you cannot download and launch executables. Unfortunately, it's only available for Google Chrome, but the browser extension can help keep your computer awake as long as Google Chrome is open.
To install it, grab the browser extension on the Chrome Web Store.
You'll then be able to enable the Caffeine browser extension from Chrome's top-right menu.
As long as Chrome is open, your computer will never fall asleep.
Why Use Caffeine?
For most scenarios, the best way to prevent your system from going to sleep is to simply change the settings of Windows. However, depending on the system you're using, you might not be able to do this.
This might be due to using a work or school computer. These systems are often loaded with AFK screen locks to prevent inactivity.
Assuming you're using Caffeine responsibly, it can be a great way to keep your screen awake while you're not using the keyboard or mouse.
Lightweight, Easy, and Effective
Caffeine requires no installation, and can even be used on systems with restricted access to .exe files. It does exactly what it sets out to do, and can be relied upon if a sleepy computer is getting in the way of your productivity.