I've been keeping tabs on my car's sleeping behavior and found some interesting data today (see graph). I have sleep enabled and always connected off. 1. Why does the DCDC converter voltage begin at 14.3 V and decline to 14.1 V? I thought the voltage should start at ~13 V for a partially discharged 12 V and rise from there, not decline. 2. A normal wake cycle for my car lasts 2-3 hours. This one lasted 4.5 hours. Why do some wake cycles last longer than others? No my car did not receive an update today. And no nobody was around to disturb it - it was parked untouched in my garage during this time.