Obviously I am not recommending that anyone try it without medical supervision, but people should at least know that it's an option.
1. https://www.scientificamerican.com/article/why-sleep-depriva...
I woke up thinking it was Monday but it was Tuesday. That took some explaining at work.
Felt amazing after about 30 hours of being awake and after the sleep's "jet lag" wore off.
I never experienced euphoria then, but in my younger years when I could still successfully pull all-nighters I found myself re-energized once the sun rose in the morning and this lasted typically until later that afternoon. This lead to a general rule where if I was planning on staying up that late I always tried to go to bed before the sun came up.
I'm in the middle of stuff and can't google a more concise source but I recall it being about 4-5 days
But your blog post specifically refers to chronic sleep loss.