Back when I was a teenager I went for a week with <8 hours sleep while on holidays with a cousin... we had a ball!
In the early '90s I had a rough week on call for work and worked >100 hours in the week, very much sleep deprived. That episode started me on many years of migraines - triggered by any reasonable sort of sleep interruption.
I think (hope!) I'm getting over that these days!
There have been several times when doing search and rescue in the Kanangra Boyd National Park that I've gone 2-3 days without sleep (often followed up within the next week by a migraine!)
When I went to Canada last November, I didn't sleep on the plane and then went on a buck's night on arrival... I think that was 37 hours, but I didn't notice any problem with jet lag!
Al.