My macbook is the late 2015 13 inch retina model and has been working great for most of the time I've owned it (I bought it last July). Last week, it began acting up. When I left my macbook in sleep mode for a few hours while I was visiting Indy and when I opened it up, the keyboard and trackpad were not responding. I was able to shut it down after I connected a USB mouse but after rebooting it, the keyboard and trackpad were still unresponsive. They came back after a seemingly random number of PRAM wipes and reboots, but the next day they were unresponsive again. I called apple support but they were unable to do anything. Any help would be greatly appreciated!