30 hours (6 chemexes of coffee, half a bottle of Jameson, a metric tonne of general tsos chicken, and a cat nap about 10 hours before the deadline). Grad school, paper deadline, complete overhaul of our core algorithm. Paper got in a few months later, slept for 16 hours the next day. Woke up at 7 and walked to the coffee shop at the corner, the employees thought I was weird for buying a coffee. It was 7pm not 7am!