36 hours, went pee twice during it. I also havent eaten for the previous 3 days before that so once I woke up I was so weak an shakey, It was very hard to walk and lift myself out of bed, I had to try a couple times, I almost wanted to cry and call someone for help, had no phone though, and I lived alone. It was terrible, but I finally HAD to get the strength to make food, and I did and I felt better.
And I sleep about 12 hours often, people think that is a lot and ask how I do it lol.