I have a late-2013 rMBP 13" 2.4ghz i5 8gb RAM and 256gb SSD running Mavericks (not sure which version, but it was up to date a month or two ago at least). I left it plugged in overnight with the MagSafe2 that it came with. This morning I unplugged it, put it in the sleeve I have, and put it in my backpack to take it to school. I went to use it over my lunch break, and it won't wake up and the power button doesn't seem to get a response out of it. It also feels slightly warm to the touch, but not hot. Normally it's cool. Any advice?! It's still in the one year warranty as well as AppleCare. It's been fine up to this point. The outlet it was plugged into is fairly new.