Sleep Mode is a free Chrome add-on developed by mactiencong that aims to optimize the performance of your computer or laptop by temporarily putting unused tabs to sleep mode. By doing so, it helps save RAM memory, extend battery life, and make your device faster.

With Sleep Mode, all tabs except for the currently active one are put to sleep mode, reducing their impact on system resources. This means that you can continue working on your current tab without any interruptions. When you switch to another tab, the previously active tab is automatically put to sleep mode while the new tab is brought back to normal mode.

The add-on also includes some useful features to enhance your browsing experience. You can ignore pinned tabs, tabs with audio playback (such as YouTube), and tabs that contain Google Docs or Office Online documents. Additionally, Sleep Mode allows you to set a sleep timer, which automatically activates sleep mode after a specific time interval, ranging from 0 to 100 minutes.

Overall, Sleep Mode is a convenient tool for optimizing the performance of your Chrome browser. It effectively saves RAM memory, extends battery life, and ensures a faster browsing experience. While still in the alpha version, it provides essential features like tab management and customization options. Give Sleep Mode a try to enhance the efficiency of your browsing sessions.