"On the Night of the Robo-Bulls and Zombie Dancers" by Nick Wolven
Published in Asimov's, February 2015
Description, from Best SF: "Wolven looks into a near future where there is a pharma solution to the ‘problem’ of needing sleep, making everywhere a 24/7 operation, including the workplace, where many in employment are now working both day and night shifts. We see this through the eyes of Gabriel, a market trader in Manhattan, who is desperate for a bit of down-time with his wife beyond the mere 4 hours he had off each day. The story revolves around a journey he is forced to undertake into downtown Manhattan, and it’s a journey through Dante’s circles of hell, in a city with privatized policing in a world that makes Sodom and Gomorrah look staid. His task: to get to understand just what the AIs traders rely on are playing at."