Once during college I had no four 20+ page papers due over a three-day period. Plan your classes better than that.... I didn't sleep for four days, and when I finally did nod off, it was in the middle of class for which that last paper was due. The teacher dismissed while I was snoring and I had to track him down to hand in my shit. To be perfectly honest, sleep deprivation during SERE training was a cakewalk compared to that week.