in sleep mode? I have to transport my laptop almost daily on my bike. I have a backpack with a laptop compartment, and a neopreme case that fits the laptop like a glove. I put it in the case and in the backpack. I always turn it off to transport it, but having to restart and shut down all the time is a hassle. Can I put the laptoip in sleep mode while it's in the backpack being transported? And would it be okay to leave it on sleep in the neoprene case in the backoack when not being used? Would it overheat, or would the harddrive get damaged from riding around in the backpack?