I haven't done a nightshift in years, but the thread bump has reminded me.
When I worked in Somerfield, I did a few nightshifts. We were paid the handsome sum of time and a third. Stacking the shelves when the shop was shut. It was non-stop, and the guy running the shift was a bit of a bellend, always trying to get us to hurry up and finish so that we could all then sit in the (closed) canteen together.
A few years later I was doing them in a different way. We'd get beamtime at a synchrotron source of a neutron source, and you'd be given 48 hours, 72 hours and (in one awful case) a week. The expectation was that you were gathering data the entire time. We'd go out as a team and take it in shifts - sitting in a windowless, air conditioned room, hour after hour of putting samples in the hutch, securing the doors, setting up the run, hitting start, then surfing the internet. I remember leaving it to go back to the on-site accommodation once and being surprised that it was dark outside. All sense of time lost.
The hardest places to do this was the synchrotrons. You do all the set up etc. and the sample would be exposed to X-rays for a fraction of a second (at Diamond or the ESRF) or a couple of minutes (Daresbury). You could set up multiple samples to stretch it out. Neutron sources were easier - at the ILL the sample would be exposed to the neturons for 15 minutes, so you had plenty of time to mess about online. ISIS was even better - 8 hour run times. Literally, every 8 hours go down into the well, take out the old sample, put in the new, come back out and start it again. I got through DVD box sets on my laptop there.