Computer Keeps waking up from hibernation

I have a Lenovo laptop that recently decided to not stay hibernated. It will randomly wake up, seemingly moreso when I have a USB device like a keyboard plugged in. I thought that it might be the "Alllow USB device to charge when the computer is off" setting in BIOS, but after I made sure that setting and the Intel "randomly wake up" (smart connect or something, introduced with haswell CPUs) thing was off, it still wakes up randomly, even with all USB devices removed. What else could be causing this?

See if this info helps:
Lastwake Command
and/or
Wake Source - Read Event Viewer Log

I checked the event log. This is what the details for one of the offending times was:

Code:

   EventData     

SleepTime 2015-08-22T03:50:10.468706600Z    

WakeTime 2015-08-22T04:16:48.721069900Z    

SleepDuration 6184    

WakeDuration 1223    

DriverInitDuration 325    

BiosInitDuration 0    

HiberWriteDuration 58711    

HiberReadDuration 35223    

HiberPagesWritten 267416    

Attributes 16653    

TargetState 5    

EffectiveState 5    

WakeSourceType 0    

WakeSourceTextLength 0    

WakeSourceText 
   

WakeTimerOwnerLength 0    

WakeTimerContextLength 0    

WakeTimerOwner 
   

WakeTimerContext

I'm not sure what I'm supposed to gather from that.

But yes, two of my network adapters were allowed to wake the computer. Fingers crossed that was it.

This post might help too:
Lastwake Command
You might also want to scroll a bit further down to the Multimedia settings.