Is anyone seeing this copious amounts of this wakelock too? It's part of the Google Search app and its wakelock has now been active for close to 5 hours now just today and seems to be active for most of the day. This is reported by Better Battery Stats and is seems to be confirmed by high energy usage by the built-in batttery settings app, as Google Search hovers in the mid 20s percentage.
I got this wakelock overnight after completely disabling location services. My N5 was held awake literally the whole night by this wakelock. This morning I turned back on location reporting and the phone is deep sleeping once again. Very strange. Did you have location service disabled because that seems to be what is causing the wakelock?
I would like to find a solution to this so I can keep location services disabled without completely disabling Google Now for overnight when I can't access a charger.