yeah
my friend was a speed addict for awhile

he said that when you stay up for a really long period of time ( 30+hours) without sleep... that your brain starts to think it's dreaming so you start hallucinating
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OzzyOz Reviewed by OzzyOz on . 48 hours without sleep? hey just wondering, how bad would it be for myself to go 48 hours without sleep no drugs involved just i've never really stayed up very long if there arn't any LONG TERM affects, i'm for it but 48 hours isn't very long compared to people who do speed and stay up for 7 days woah!! Rating: 5