nwsmith1984,

I can completely understand about the mental fog, and even being unnerved about it. It's a tough thing for the unconcussed to conceptualize that part of the brain/mind is functioning normally and is completely aware of the fact that a portion is not functioning at normal speed, and there's nothing that you can do at the moment to make it better. Yeah, it sucks and it's scary.

Be patient, and even more patient. Find calmness and with respect to your original question, getting rest for me meant, doing as little thinking and/or mental processing as possible. Computer work, watching TV, loud music, anything that causes mental fatigue is counter productive to "rest". As my neurologist explained to me, "your brain is re-booting", and as well, offered that ever famous saying around here, "it's going to take time".

Mike