On my SP I already have the KB4022725 update (I don't know if on my machine there has ever been the 716 one since I made my first updates on the 20th of June) but it keeps hibernating.
I have the impression that the problem is becoming worse with time, it tends to hibernate more and more frequently, but that could be just an impression... anyway, today I left it idling two times and both times in less than 30 minutes it went to hibernation
(my settings are hibernation after 2 hours both on battery and plugged).
In general I would say, based on my personal experiences and what is reported here, that the problem is "in the PC", no settings change or accessories removal or software configuration seems to make any difference.
To me it often happens running Word 2013, but it also happens with Chrome or even with no program running, while on the desktop screen and idling.
Two minutes ago I was on Chrome, I made ALT-TAB to go to Word on an open file and 2 seconds later, hibernation. I repeated the same steps another 3-4 times, no problem... no way to reproduce the incident...