1: How much of your life do you spend asleep?
a) About one-third
b) About half
c) About three-quarters

3: How many hours of sleep does a nine-year-old child
need each night?
a) 15 hours of sleep
b) 10 to 11 hours of sleep
c) 3 to 4 hours of sleep

5: Which part of your body makes the chemical melatonin?
a) Your heart
b) Your nose
c) Your brain

7: Which of these statements is false?
a) Having a bright light near to your bed helps you fall asleep.
b) Having a bright light near to your bed can make it hard
to fall asleep.
c) Having a bright light near to your bed can make your body
clock think it’s daytime.

9: During which stage of your sleep cycle do you normally
have dreams?
a) Stage 5
b) Stage 1
c) Stage 2

2: When you are 12 years old, how many years will you
have spent asleep?
a) Six years
b) Two years
c) Four years

4: What is your body clock?
a) A part of your brain that detects sunlight and darkness
b) A part of your body that tells you when it’s time to go
to school
c) Another name for a wristwatch

6: What does the chemical melatonin do inside your body?
a) Makes you feel hungry
b) Makes you feel happy
c) Makes you feel sleepy

8: How many stages are there in your sleep cycle?
a) 10
b) 5
c) 3

10: What happens during REM sleep?
a) You never have dreams.
b) Your brain is not very active.
c) Your eyelids flicker, your brain is very active, and you
have dreams.

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11: Which of these statements is true?
a) Sleep is very bad for your brain.
b) A good night’s sleep makes you grumpy and unable to do
your schoolwork.
c) Sleep helps your brain pay attention, remember things,
and solve problems.

13: What happens to your skin as you sleep?
a) It stops growing.
b) It changes color.
c) It grows new cells and heals cuts and scrapes.

15: Why is sleep good for you?
a) Because it’s something to do when you’re bored
b) Because it helps you have more energy
c) Sleep isn’t good for you.

14: Which statement is false?
a) As you sleep, you might get shorter.
b) As you sleep, you might grow a little taller.
c) As you sleep, your body produces chemicals to fight
off illnesses.

16: Which statement is false?
a) Going to bed at the same time each night will help you
fall asleep.
b) Having a quiet, dark bedroom will help you sleep.
c) Playing computer games in bed will help you fall asleep.

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12: Which of these statements is false?
a) Sleep makes your muscles feel tired.
b) Sleep gives your heart a chance to beat slower and rest.
c) Sleep gives your muscles a chance to rest.