Sleep World Records: The Most Astonishing Sleep & Sleep-Deprivation Records
Sleep world records — From the longest documented insomnia case to the most mattresses dominoed at once, our team rounds up the strangest sleep-related world records.
Hannah and Priya on our team went down a Guinness rabbit hole one slow Tuesday and didn’t come up for hours. Here are the sleep records that actually stuck with us.
Longest without sleep — Randy Gardner, 1964 (Sleep world records)
17-year-old San Diego student Randy Gardner stayed awake for 11 days, 25 minutes (264.4 hours) for a high-school science fair, monitored by Stanford sleep researcher William Dement. By day 10 Gardner was hallucinating, paranoid and unable to do basic arithmetic. He recovered after 14 hours of sleep. Guinness retired the category in 1997 because the health risks of attempts were considered too severe.
Longest documented insomnia — Thái Ngoc
Vietnamese farmer Thái Ngoc claims to have not slept since a 1973 fever — over five decades. Sleep researchers who’ve examined him suggest he experiences micro-sleeps rather than zero sleep, but it’s never been formally measured. Either way, he still farms his land in Quang Nam at the time of writing.
Largest mattress domino chain
The current Guinness World Record for the largest mattress domino chain is 2,019 mattresses, set in 2019 in Texas by an American mattress retailer. The previous record (1,200) was held by IKEA. Australia has not yet attempted this record, which is a national disgrace.
Longest dream recall
The longest recorded REM dream cycle is around 3 hours and 8 minutes, observed in a sleep lab in 1994. Most REM dreams last 5–30 minutes.
Most beds jumped on continuously
An eight-year-old American holds the record for jumping between beds without touching the floor — 87 consecutive beds in 2017. We don’t recommend attempting this one at home.
Largest pillow fight
The biggest pillow fight on record involved 6,261 participants at the University of California, Irvine, in 2015.
Longest power nap streak
NASA studies on shift workers found that pilots who took a single 26-minute nap improved alertness by 54% and performance by 34%. The “26-minute nap” has since become NASA’s formal recommendation for fatigued personnel.
Shortest documented natural sleeper
A small subset of the population (estimated 1–3%) carry a mutation in the DEC2 or ADRB1 gene and naturally sleep 4–6.5 hours a night without showing fatigue effects. They are sometimes called “short sleepers” — and unfortunately, you can’t train your way into the club.
Sources: Guinness World Records, Stanford University sleep archives, NASA technical reports, peer-reviewed sleep-genetics research.
For independent guidance on sleep and wellbeing, the Sleep Health Foundation is a good starting point.
