9
During a sleepwalking episode some people can suffer horrendous injuries without noticing or waking up.
7
Crocodiles are thought to be capable of keeping a watchful eye out even when they seem to be fast asleep.
8
Our tendency to not get enough sleep at night is seemingly not an exclusively modern phenomenon.
57
Transhumanists have been looking towards a future in which a person could spend their entire life awake.
9
Georgia Green from Adelaide suffers from a rare condition that sees her fall asleep for weeks at a time.
21
A remarkable new best-selling book is capable of sending a child off to sleep almost like clockwork.
12
A young girl from New Zealand has become a social media hit after playing the piano while asleep.
16
Scientists have been investigating human hibernation as a way to enable long-haul space trips.
106
The terrifying phenomenon may account for numerous sightings of ghosts, monsters, demons and more.
49
Villagers in a remote Kazakhstan village are still inexplicably falling asleep for days at a time.
11
An undiagnosed sleepwalker narrowly cheated death when he waltzed over the edge of a 60ft drop.
49
Dozens of people in two remote Russian villages have been falling asleep for up to six days at a time.
40
Not only does it have 8 legs but it also appears to possess both male and female reproductive organs.
14
A new study has suggested that it may be possible to learn about someone else's problems while asleep.
18
Failing to get enough sleep could not only make you tired, it could permanently damage your brain cells.
16
ESA's comet chasing spacecraft has successfully woken up after hibernating for two-and-a-half years.
22
Guy Whittall managed to sleep for the entire night with the enormous reptile directly beneath him.