I know it isnt your specific question, but I worked during the California Wildfires. They brought in extra beds. If you werent asleep you were working. My shifts could last about 34 hrs before I had to sleep. I could only do that I think twice. Everything else was more of a rotating 20 hrs shift. 20 on, 6 to 10 off. And I mean that for everyone, I wasnt there for more than 4 or 5 days if memory serves me right.

I know the literature says you cant make up for lack of sleep, but I had about 8 days off after that scenario and slept for most of it.