Laptop Won’t Sleep? Troubleshooting Guide Posted on January 21, 2026 By Mack Laptop Won’t Sleep? Troubleshooting Guide – Summary: This article provides effective ways to fix M1 Mac and MacBook Pro/Air that won’t sleep when the lid is closed. You can also find out why your MacBook won’t sleep when the lid is closed on MacOS Monterey, Big Sur, and Catalina. By default, your MacBook goes to sleep when you close the laptop lid. But something unexpected happens. You can see the light from the side of the Mac. When the lid is opened, the MacBook simply remains on the desktop instead of displaying the login screen. Laptop Won’t Sleep? Troubleshooting Guide… Read more