I dont get it, is this an isolated incident or does every 2010 core i5/7 MBP suffer from this exact issue? So far I have not come across anyone who owns a core i5/7 MBP that skips sleep mode completely and goes directly into hibernation when the batteries are drained! So, unless someone who has a core i5/i7 MBP that goes to sleep instead of hibernation when the batteries are drained, I am going to consider this strange behavior as a feature that for some strange reason is not documented by Apple. I guess they just have other priorities these days! Anyone else with a 2010 core i5/i7 MBP care to comment or share their experience?