I'm sooo sleeepyyy

Yesterday we went and prepared a big shop (17 POS systems) to be opened this morning. I'm still in work and haven't had any sleep for more that 24 hours .... The day before only 5 hours. I'm about to break down. My mind is not doing exactly what I want it to. :))) Ever felt like that ? Ever went without a sleep for three or four days... :)) Unforgettable experience.