How long can a human go without sleep?

Answers:    After missing one night of sleep, expect fatigue, reduced attention span and problems with short-term memory.
After missing 2 to 3 nights, one will also suffer poor coordination, muscle twitches, marked loss of concentration, impaired judgment, blurred vision, nausea, and slurring of speech. Often one will experience episodes of microsleep (briefly sleeping for a few seconds at a time, without being aware of it).
At about 4 to 5 days without sleep, expect extreme irritability, hallucinations, and delusional episodes.
After about 6 to 8 missed nights, add slowed speech, tremors in limb extremities, memory lapse, confusion concerning one's own identity, unusual behavior, and paranoia to the list.
After 9 to 11 nights without sleep, fragmented thinking occurs (beginning sentences without completing them), and prolonged episodes of unresponsive "conscious stupor."
The effects of full sleep deprivation in humans beyond eleven days have not been explored due to the health risks involved. Presumably, irreversible damage will soon follow, then death. This has been demonstrated in lab rats which died after being prevented from sleeping for two weeks. It is also evidenced by a very rare human brain disease called Fatal Familial Insomnia, where an adult individual slowly loses the ability to sleep, and the victims experience all of the above symptoms gradually over a few months. This disease eventually leads to dementia, permanent personality changes, motor paralysis, and ultimately death.
it depends on how long you can handle it.
46 hours was the longest I went and I was delirious during that last 5, your head starts pounding, feel queasy it takes a toll on your body
Normally after about three days a person starts to hallucinate. I have personally seen one case where somebody on drugs did not sleep for seventeen days. That is what they call a meth monster.
The record for the longest period without sleep is 18 days, 21 hours, 40 minutes during a rocking chair marathon. The record holder reported hallucinations, paranoia, blurred vision, slurred speech and memory and concentration lapses.

So to answer your question... its probably that much or less.
My personal best was about 3 1/2 days. I felt and looked horrible. I started seeing shadows and what I thought were rats. Very trippy. It totally depends on the person though. Some people pass out after a day or so.
i can barely even go a day without sleep!! how in the hell do peoople go 17 days?

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