I call bullshit.
No one I have ever known, including myself, has ever actually gone without sleep for more than 72 hours without hallucinating to the point they could no longer function normally.
From what I have read concerning the lack of sleep, this is pretty universal if one excludes severe brain damage.
The lack of sleep itself is a primary contributing factor in cocaine and amphetamine psychosis.
Are you sure your definition of sleep is not the common one? or was it just lack of REM dreams?
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