Pillow and a blanket please

Why am I so tired today? I am sitting at my desk and am trying as hard as I can to not fall asleep. I can feel my eyes closing and my head doing the nodding off thing. I would give anything to lie down, close my eyes and take a nap. My back is killing me too….I hope I’m not getting sick. No time for that nonsense. If I could just go to sleep, everything would be ok….