How many days can I go without much sleep?

For the past few months, I had been sleeping very little, averagely 3hrs a day. Odd hours too.
Last two days, I slept only 1hr a day. This week I am going to be very busy. I wonder by Friday, will I still be able to work without biting anyone?

I'm counting on coffee to help keep me sane and alive for now.

Anyone ever had such sleep deprived experience?
How was it for you? Comments 😃

You're lucky if you can fall asleep easily

A tired mind leads to a tired body because I am just too tired to do anything.

I want to sleep but I can't.