An office all my own

I'm told that everyone used to have their own office except temporary employees but I can't figure out how they decide who gets and office now and who doesn't. All the developers seem to have their own office including the temporary contractors. All of the QA department is crammed into a lab that doesn't even have cubicles. The head of the department is in an ajoining office that is about twice as big as any other office in the place. This week one of the QA engineers moved into his own office. I'm told this is because he needs a place where he can nap without being disturbed I guess for some medical condition. I'm sure it's necessary but what message does that send to the rest of the staff?