50h felt awful do not recommend

I can easily stay awake for 26-28 hours. After that I’m useless.

16 hours.

No sleeping at all? 40 hours

1,5 days or so

From the day before I had my daughter to about 2 days after

I was hallucinating somewhat

probably around 36-40 hours

Around 20 hours

about 4 days

During finals week I remember sleeping just a few hours per day. A lot of all-nighters.