Struggling to keep eyes open in office

[nst68]

Does the office have closed windows and just aircon?
If so then check that enough "air changes" per hour are happening, if it's low then will lead to the air getting stale and that could make you feel drowsy.
(this tends to happen in companies that are tight arses!).

 

[robgmun]

I can't be the only one who misread this?

Depends on how you misread it i suppose