The past two nights when I sleep my Mac and come back to it in the morning, it has crashed and restarted with a Sleep Wake Failure. I just got it on Saturday, and the past two nights are the first uses of sleeping with devices plugged into it. I have a TB2 drive, USB 3 hub, power and display plugged in. I'm going to turn off Power Nap and see if that keeps it from happening. Anyone else had this happen?