It can be a bit like that here in wintertime. I think it must be the lack of daylight and the cold weather makes us all depressed and antisocial!
There was a horror film set somewhere very northerly, perhaps somewhere in Alaska where it apparently stays totally dark for 30 days throughout part of the winter. This scenario became the perfect catalyst for an unprecedented outbreak of vampire activity.
Regarding long nights (or long days for the case), my experience in Antarctica was the alteration of our sleeping schedule, at lost because of late sunsets and early sunrises. I still recall an occasion in the bridge of our vessel at the anchor: I could see on starboard, the ongoing sunset while sunrise started on port side.
By necessity, the new "habit" became going to bed by the clock.
In my first campaign, after crossing the Drake passage for the first time, a group of officers, all new in this area, we spent a whole night chatting and joking in the messroom, unaware of time. What a surprise when we found we had to start operations with a blank night behind.