Sleep Facts
True/False: You can be sleep deprived even if you don't feel sleepy.
True!
True/False: some animals sleep with only half of their brain.
True
Dolphins, elephant seals, and some birds can sleep with half of their brain at a time
True/False: not getting enough sleep can make you more likely to catch a cold.
True
Being sleep deprived has many health risks, including an increased risk of getting sick.
Who was the Greek god/goddess of sleep?
a) Nyx
b) Hades
c) Dionysus
d) Hypnos
d) Hypnos
Nyx, the goddess of night, was his mom!
How many stages of sleep are there?
4, 5 if you count "resting"
What percentage of adults say they prioritize sleep?
10%
How much sleep does a giraffe need?
Between 20 minutes and 2 hours per day!
True/False: using your phone before bed is associated with better sleep
False
Excessive screen time in the evening can prevent your brain from telling the body it's sleepy!
Who was the first person to study sleep?
a) Bill Dement
b) Nathaniel Kleitman
c) Lebron James
d) Kate and Lauren
Nathaniel Kleitman
Which stage of sleep is the hardest to wake up from?
Stage 3 sleep
What does REM stand for?
Rapid Eye Movement
True/False: Hibernation and sleep are the same thing.
False!
Animals are actually very exhausted when they come out of hibernation. Also, captive animals don't hibernate at all.
Which of the following would be the most effective at waking you up?
a) A bright light
b) A loud crash
c) A bad smell
d) Someone tapping your shoulder
a) A bright light
Randy Gardner holds the record for going the longest amount of time without sleeping. How long did he last awake?
a) 24 hours
b) 4 days and 17 minutes
c) 11 days and 24 minutes
d) 2 weeks, 2 days, and 41 minutes
c) 11 days and 24 minutes
Bonus fact: he regretted this for the rest of his life!
What is the scientific word for being awake, but resting?
Stage 0 sleep
What's the scientific word for not being able to sleep?
Insomnia
Out of the ~60,000 vertebrate species, how many has sleep been studied in?
a) none
b) 100
c) 1,000
d) all of them!
b) 100
How much sleep do you need at your age?
a) 5-7 hours
b) 7-9 hours
c) 9-11 hours
d) 11-14 hours
9 to 11 hours
In 1962, Michel Siffre lived in a cave by himself with no way to tell what time it was. His body lost track of time entirely. How many days off do you think he was when he finally came out of the cave?
a) 2 days
b) 14 days
c) 25 days
d) 60 days
c) 25 days
And then he did it again!
The deepest stage of sleep is stage ___
3
What's the difference between sleep and a coma?
Sleep is reversible; you can come out of it by yourself
True/False: Horses and cows lie down all night to sleep, just like people.
False
They only lay down for REM sleep!
How long before bedtime should you stop drinking caffeine?
8 hours!
What did Aristotle think sleep was?
a) he thought sleep was for receiving visions and signs from the gods
b) he thought digestive vapors went to the brain, telling the body it was time to sleep
c) he thought you die for a little while and come back
d) he thought sleep was to "recharge" the energy you used up during the day
c) he thought digestive vapors went to the brain, telling the body it was time to sleep
Dreaming happens in which stage of sleep?
a) stage 1
b) stage 2
c) stage 3
d) REM sleep
REM sleep