Caffeinated

Caffeinated is an application you can use to prevent your computer from entering sleep mode. It runs in the systray and provides quick access to its options while enabling you to carry on with your normal PC activity without any interruptions.

Runs in the systray

Once launched, the tool creates an icon in the taskbar notifications area, alerts you of its presence, and shows a configuration panel. It's possible to integrate it into the Windows autostart sequence to run by default every time you turn on your PC until further notice.
Furthermore, it can become activated automatically once deployed, after specifying the default duration take into account when preventing PC standby, ranging from 5 minutes to 5 hours or indefinitely. This startup message can be hidden from display.

Set the duration to prevent auto-sleep

The app can be manually activated and deactivated by double-clicking on its tray icon. Opening its right-click menu gives you access to the previously mentioned duration intervals for restricting PC sleep time. Unfortunately, it implement a setting for establishing custom time, so you can only choose between the predefined profiles. There are no other notable options available.

No setup required, besides .NET Framework

The entire program's packed in a single .exe file that can be dropped anywhere on the disk or stored on removable storage units to effortlessly run Caffeinated on any PC. It doesn't add new entries to your system registry and remembers your settings on exit without creating or updating any files. However, it's not exactly standalone, since it needs .NET Framework to work properly.

Evaluation and conclusion

Although it hasn't received updates for a long time, it worked smoothly on newer Windows models in our tests, without triggering the OS to hang, crash or indicate errors. As we expected, it left a small footprint on PC performance, since it consumed a low amount of CPU and memory.
To wrap it up, Caffeinated delivers a simple and effective solution for preventing your computer from entering sleep mode, and it can be seamlessly tackled by anyone.