Hello - I have a 2.7GHz, 16GB MBP with Retina Display, and I'm having battery and sleep issues. The battery does not last more than a couple of hours of use, and, even when I put the laptop to sleep the battery drains very quickly. For example, the battery was at 100% at 6pm when I closed the lid. At 10:30am when I opened the lid, the battery was at 60%. My old MBP never had this issue. In addition, I have had issues with the new MBPR coming out of sleep. It takes a very long time to wake up, and, sometimes, it doesn't wake up at all. This is more than a little disappointing. Has anyone else had these issues?