text: Do you have a reclining chair (one that you can lean back in)?  If you do, lean back and put your chin to your chest.  It should be a nice easy stretch on your spine, and won't give you a cramp in the neck either.\n\nDon't worry, I won't tell your boss.  :o)\n\np.s. If you're not afraid of getting caught, you can always let your head hang backwards... or sleep under your desk -my mom used to do that.