I happen to be using a mid-2012 Macbook Air, but I bet this could apply to any laptop. In Windows 8 Bootcamp, I noticed my computer was immediately hibernating when I closed the lid, instead of sleeping. I tried to adjust the power settings but 'sleep' was not a possible action to take when closing the lid, only 'hibernate' or 'shut down'. Here's the output of powercfg -a: Has anyone seen this before in boot camp? I'm using the latest drivers. I'm curious if the issue would lie in faulty boot camp drivers, or something else particular to my Windows installation. I could have sworn sleep was working properly before, but I am not 100% sure. This is a relatively new installation. Thanks.