How to Enable Sleeping Tabs in Microsoft Edge

This brief tutorial shows students and new users how to enable or disable the sleeping tabs feature in Microsoft Edge browser.

The new Microsoft Edge browser has adopted the Chromium open source project code base and offers better web compatibility and performance over the legacy edge.

Edge browser is a cross-platform which supports all of Windows, MacOS and Linux systems. If you’re currently using Microsoft Edge and want to learn how to enable or disable its new Edge sleeping tabs feature, the steps below should show you how to do it.

Microsoft Edge sleeping tabs feature is there to help improve memory and CPU utilization. Microsoft indicated that early internal testing of devices with sleeping tabs had shown a median memory usage reduction of 26% for Microsoft Edge.

Internal testing also showed that a normal background tab uses 29% more CPU for Microsoft Edge than a sleeping tab. By default, sleeping tabs is enabled and is set to go to sleep after two hours of inactivity. You can also change that do longer duration if you like.

To get started with enabling or disabling Edge sleeping tabs feature, follow the steps below:

Enable Sleeping Tabs from flags

To quickly enable or disable Edge sleeping tabs feature, open Microsoft Edge browser and browse, copy and paste the line below inside the address box.


From there you can keep the default settings, enable or disable the feature.

Just below line to enable sleeping tabs, you can also choose to enable immediate timeout for sleeping tabs. This will Ignore the sleeping tabs timeout setting and put background tabs to sleep immediately on Mac, Windows, Linux systems.

Enable Sleeping Tabs from Settings

Another way to enable or disable Edge sleeping tabs feature is from Edge’s setting page. To get there, open Microsoft Edge browser and go to the three horizontal dots ( . ) at the top right corner of your screen and select Settings.

When the Settings page opens, go to Systems on the left menu. To the right, under Save resources, choose to enable sleeping tabs.


Enable Sleeping tabs from registry

You can also enable the Sleeping tabs feature from Windows registry.

If you’re logged in as an administrator, you can also enable Edge Sleeping Tabs via Windows registry. To do that, use the steps below:

Using Windows registry is one way to force all users on the system to use Sleeping tabs. There are multiples ways to do this in Windows, however, using Windows registry is the easiest and most effective way to do it.

To enable, press the Windows Key + on your keyboard to open the run command box. Or use the search function to search for the Run app.

In the command box, type the commands below and press Enter.


Then the registry opens, navigate to the path below.


From there, right-click on the Edge key and select the New > DWORD (32-bit) Value option to create a REG_DWORD value if you don’t see existing SleepingTabsEnabled value already created.

Name the new DWORD value as


After saving the DWORD above, double-click it to open. Then enter the value of 1 to enable.

(delete) = Default
0 = Always disabled
1 = Always enabled

That should do it!


This post showed you how to enable or disable Microsoft Edge sleeping tabs feature. If you find any error above, please use the form below to report.