The grocery store in the middle of the night is a very different place. It is quiet, empty, and a little bit strange. The shoppers who are there in the late-night hours are a unique and very valuable demographic for a retailer. They are the night-shift workers, the college students, and the insomniacs. Grocery chains are now using their data and surveillance systems to quietly study the habits of these late-night shoppers. They want to understand what makes them tick.
