It never fails that a major issue manifests itself while you're away at a conference, on vacation, or at home asleep. Without a remote access solution in place, you have to change out of your pajamas, drive in to work, slap yourself three or four times to stay awake, and fix the problem. What a waste of time! It's often said that Linux administrators are more effective at solving problems with bed head while wearing pajamas.
I don't think I fully understand what it's saying. If it means what I think it means, that is, Linux sysadmins are better at solving problems when their hair is untidy, then I don't understand why there is no indefinite article in front of bed head. Why isn't it written as with a bed head. After all, we do say "with a clear head", don't we?