The document summarizes the stages of sleep. It discusses the 5 main stages of sleep: stage 1 (light sleep), stage 2 (true sleep), stage 3 (deep sleep), stage 4 (very deep sleep), and REM sleep. REM sleep is when the eyes move rapidly and dreams occur, but the body is paralyzed. The document states there are between 3 to 5 sleep cycles per night, with each cycle lasting around 90 minutes and consisting of the different stages of sleep. It provides tips on sleep hygiene and explains that sleep is important for the brain to consolidate learning and memories from the day.

1. Welcome to our group’s presentation!
Sleep

2. What is
sleep?
Sleep is the body’s natural ‘pause button’.
During sleep, the muscles relax. Breathing gets
slow. The heartbeat gets slow. The brain works
differently too.
pause
muscles
stop for
some time
brain

5. Stage one
During the stage
of sleep. The body
slows, the muscles
relax.It is easy to
wake up from this
type of sleep.

6. Stage two
After ten minutes
of light sleep, you
start “true sleep”.
This last about 20
minutes. People
breath more
slowly, the heart
beats more slowly.
Most sleep in the
night is “true
sleep”.
breath
beats

7. Stage
three
Breathing
and
heartbeat are
very slow
now.
Stage four
Breathing is
rhythmic. There
is some muscle
activity. It is
difficult to wake
up from this
sleep.
rhythmic

10. REM
REM means ‘rapid eye movement’.
This is because the eyes move very
quickly.
The first REM phase starts about 70
to 90 minutes after a person falls
asleep.
People have between three and five
REM phases a night. They are not
awake but the brain is awake and
active.
People dream during REM sleep but
the body can not move.That stops
people ‘acting’ their dreams.
stage,
step
phase
rapid

12. 1. How many types of sleep?
2. What does REM stand for?
3. How many non- Rem stages of sleep are there?
4. When is the heartbeat at its slowest?
5.How many sleep cycles do people have each night?
6. What part of the body moves when a person dreams?
7. How long does “ true sleep’’ last?
Four
Stage three
Between 3 and 5
Two
About 20 minutes
The eyes
Rapid Eye Movement

13. Daily Sleep Diary ( Complete the diary each morning)
Your Name___________________________ The date of Day 1_______________

14. Sleep Tips
Here are some things you can do to help get a good night's sleep

15. Why do we sleep?
When we sleep, our brain has to sort out
different things we’ve been doing: thinking
and _______________
during the day.
It’s time for your body to slow down and
have a ___________________ to get ready
for the next day.
If we don’t sleep, we’ll get too tired to play
and learn new things, and we might get
_____________________ .
We should sleep every night to get enough
energy for ______________________, for
thinking, playing, loving, eating, running
and growing.
1
2
3
4
learning
rest
sick
tomorrow

16. Thank you!