Computer Wakes Up From Sleep. Issues could range from faulty hardware to software bugs, as we will explore below. Your computer might be waking from sleep mode because certain peripheral devices, such as a mouse, a keyboard, or headphones are plugged into a USB port or connected via Bluetooth.
I use the touchpad to wake up the computer out of sleep mode (to save on the power button over time) but the touchpad has never been touched when it wakes up on its own. That wakes the sucker up, bringing it back to active duty. It's up to you whether you want to keep another device enabled for.
The light turns on that the computer is turned on but the screen remains black.
Schedule your computer to sleep and wake at a certain time.
To wake up your Windows computer from Sleep mode at a fixed time, type Task Scheduler in Start Search and hit Enter. I would rather not have to do this. If you want to prevent the computer from sleeping if programs are running or someone is using the computer, then use the following settings in the Conditions tab At the same time, people started reporting that their computers were not waking up after sleep mode.