How to Configure Sleeping Tabs in Edge on Windows 11

Microsoft Edge includes a built-in feature called Sleeping Tabs designed to drastically reduce RAM and CPU consumption by putting inactive background tabs into a low-power state. This guide provides a straightforward walkthrough on how to enable, adjust, and customize Sleeping Tabs on Windows 11 to optimize your system’s performance and memory usage.

Steps to Enable and Configure Sleeping Tabs

Open Microsoft Edge Settings:
- Launch Microsoft Edge.
- Click the three horizontal dots (menu icon) in the top-right corner.
- Select Settings from the dropdown menu.
Access Performance Settings:
- In the left sidebar, click on System and performance.
Enable Sleeping Tabs:
- Under the Optimize Performance section, locate the toggle labeled Save resources with sleeping tabs.
- Switch the toggle to On.
Set the Inactivity Timeout:
- Find the dropdown menu labeled Put inactive tabs to sleep after the specified amount of time.
- Choose your preferred timeframe (ranging from 30 seconds to 12 hours of inactivity). Selecting a shorter duration, such as 5 minutes, will free up RAM more aggressively.
Enable Visual Indicators (Optional):
- Toggle the switch for Fade sleeping tabs to On. This dims tabs that are currently asleep, making it easy to identify which tabs are conserving memory.

How to Exclude Specific Websites from Sleeping

If you use web applications that require constant background activity (such as web-based music players, messaging platforms, or live dashboards), you can prevent them from sleeping:

Scroll down to the Never put these sites to sleep section under Optimize Performance.
Click the Add button.
Enter the full URL of the website you want to keep active (e.g., https://web.whatsapp.com or https://open.spotify.com).
Click Add to confirm.

How to Wake a Sleeping Tab

To restore a sleeping tab to full activity, simply click on the tab. The page will instantly reload its state without losing your place.