One of the things I've always loved is that the iPhone's battery drain overnight has always been very good. My iPhone 5s would drain only about 1-5% overnight. Sometimes if I unplugged it at 100% before bed I would wake up with 100% too. The iPhone 6 is a different story and I can't figure out why. I lose about anywhere from 10-20% of my battery life overnight. I have all background activity shut off and keep my location services at a minimum and I still can't figure out why I am losing so much at night. Anyone else have this issue or any ideas on what I can't do to slow the drainage?