Put any tab on a sleep timer to close or mute the tab when the timer expires.
Manifest V2
- Users:
- 3,000+
- Version:
- 1.0 (Last updated: 2021-02-03)
- Creation date:
- 2021-02-02
- Permissions:
- tabs
- alarms
- storage
- Size:
- 26.10K
- Email:
- ch*****@danielde.dev
- Full description:
- See detailed description
- Source:
- Chrome Web Store
- Updated:
- a day ago
Other platforms

User reviews
Users appreciate the extension's functionality for timing media to aid sleep, finding it simple and effective when working. However, a common major issue is that the extension frequently breaks or freezes after a single use, forcing users to uninstall and reinstall it to restore functionality. Canceling active timers often causes the extension to become unresponsive. Despite these drawbacks, many users still prefer it over alternatives and find it convenient for its intended purpose.
Pros
- Works as intended when functioning properly
- Helps users fall asleep by closing or muting media tabs
- Simple and convenient to use
- Preferred over similar extensions despite flaws
- Useful for timers on YouTube or podcasts
Cons
- Frequently breaks or freezes after one use
- Requires uninstalling and reinstalling to reset functionality
- Cannot cancel a timer without breaking the extension
- Negative timer display issue after use
- Becomes unresponsive, needing re-installation
Recent reviews
Everyone else is right. But if you let it do its thing, it does work. I just create a bookmark to the web store page and REMOVE/INSTALL anytime it gets disabled. Bit of a PITA but, given the lack of working alternatives, not terrible. Only takes a few seconds.
The problem is, if the extension EVER completes the countdown WITHOUT being able to close the tab - it becomes forever unresponsive to input. Even closing Chrome and restarting will not reset it. You can open the extension, but it simply will not respond to any clicks so you can't set/start the timer ever again. Only removing then reinstalling extension resets it.
This means, not only can you never CANCEL a timer once started, but even the "MUTE TAB" feature also disables the extension once it reaches zero. Oh sure, it does mute the tab....but since the tab didn't close....you're done until reinstalling the extension.
Wish the developer would spend an hour and update this extension.
by
Figmo JustFigmo, 2025-03-20
Funktioniert nicht wenn ein Video in Vollbild ist
by
Bastian Agosti, 2024-09-27
Не срабатывает
by
vasja.a.a.64, 2024-07-01
Extension safety
Risk impact
Sleep Timer requires a few sensitive permissions. Exercise caution before installing.
Risk impact analysis details
- Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
Risk likelihood
Sleep Timer is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this extension.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
- Medium **** ********* *** *** **** *******
- Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
- Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Upgrade to see full risk analysis details
Instantly check and monitor your browser extensions' risks and permissions with
Extension Guard.
Similar extensions
Here are some Chrome extensions that are similar to Sleep Timer: