>>1455094The reason you want people with head injuries to be awake is purely in order for a trained medical person to determine the extent of the injuries (check eye focus, check for paralysis or other nerve damage, etc).
If you are not likely to make it a hospital any time soon, going to sleep is the most preferable outcome. Not only your brain is more likely to recover and even repair certain damages during sleep but if you are asleep you're less likely to fall over/go unconscious and hit your head again on the way down.
Once again, if you are likely to get to a hospital then you want to stay awake to help the doctors/nurses figure out wtf, but if that's not likely then you do want to be asleep.
