As a University student in the States, I can say that, other than academics themselves, this is mostly propagated by a "I slept fewer hours than you so clearly I work harder look at me and feel bad I'm so stressed kbye" mindset. I have seen many times people waiting to tweet or Facebook something right before bed to prove to the world (and elicit responses) that they were up till an ungodly hour.
It's similar to what happens in adulthood when everyone compares how "busy" they are 24/7 and display it as if it's a badge of pride.
It's similar to what happens in adulthood when everyone compares how "busy" they are 24/7 and display it as if it's a badge of pride.