I do not know if it is just me, but is anyone else noticing that the MBP drains quite fast when it is sleeping? My former Powerbook (17" 1.67gHz) was great when it slept overnight: I would charge it, put it in my backpack at 11pm, and when I get to class at 8am it would be at ~ 97-98%. Last night I charged my MBP until it was full, shoved it in my backpack at 12am. It's now 7am, and the battery is down to 93%. I do not have any peripherals attached or any bluetooth devices to wake it. Is this natural for the MBP? I recalibrated my battery the day I got. Feedback would be great.