Randy Gardner

Fitness expert and author

Randy Gardner was an American high school student who set the record for the longest time without sleep in 1964. He stayed awake for 264.4 hours, or 11 days, as part of a science fair experiment. Gardner's feat was documented by scientists who studied his physical and mental changes during the experiment. He experienced hallucinations, memory loss, and disorientation. Gardner's record has yet to be beaten. He has sin...