Wake timers not working on laptop

[dpcnull]

I am trying to use my laptop as an alarm clock for waking up in the morning. I put the laptop in sleep mode at night, and none of the alarm clock programs that I have tried have succeeded in waking it. I am able to wake it manually by pressing the power button. Wake timers have been enabled and hybrid sleep is disabled. It is an NP5125 from Sager.

 

[dpcnull]

Okay, I rebooted it, something I rarely do, and now for some reason it works. *shrug*