Importance of Sleep
Lesson preview: the Mini Lesson and Vocabulary are open to everyone. Guided practice, exercises, the parent checklist and the printable PDF worksheet come with full access (free 7-day trial or membership).
What you will learn
- 1State the recommended number of sleep hours for children aged 6 to 12
- 2Identify two key ways sleep helps the body and brain
- 3Describe what happens when a person does not get enough sleep
Mini Lesson
Sleep is one of the most important things your body does. While you are asleep, your brain processes everything you learned during the day, and your body repairs itself and grows. Getting enough sleep every night is essential for good health, learning, and mood.
How Much Sleep Do Children Need?
- Children aged 6 to 12 years need 9 to 12 hours of sleep per night.
- Teenagers aged 13 to 18 years need 8 to 10 hours of sleep per night.
- Adults need 7 to 9 hours of sleep per night.
- Getting the right amount of sleep regularly is more important than catching up on weekends.
How Sleep Helps the Body
- Memory and learning — during sleep the brain organizes and stores memories from the day, making it easier to remember and learn new things.
- Immune system — sleep gives the body time to produce proteins that fight off illness, so well-rested children get sick less often.
- Growth — the body releases growth hormones mainly during deep sleep, which is why children grow more at night.
- Mood and focus — enough sleep helps you feel calm, concentrate better, and manage emotions during the day.
What Happens Without Enough Sleep
- Difficulty concentrating on lessons and remembering them.
- Feeling irritable, anxious, or overly emotional.
- A weaker immune system, making you more likely to catch colds and infections.
- Slower reaction times and poor coordination — which can lead to accidents.
- Sleep deprivation (not getting enough sleep night after night) can affect growth and overall health.
Words to know
Sleep
A natural rest state for the body and brain that is essential for health
e.g. Getting enough sleep helps the brain store memories.
Immune system
The body's defense system that fights germs and illness
e.g. Sleep strengthens the immune system.
Memory
The brain's ability to store and recall information
e.g. Sleeping after studying improves memory.
Growth hormone
A chemical released by the body during sleep that helps children grow
e.g. Growth hormone is released mainly during deep sleep.
To sleep well: switch off screens one hour before bed, keep a regular bedtime, and make sure your room is dark and quiet.
Unlock the full HSEA system for 7 days.
Add your first kid profile and your 7 days start: every lesson in every grade, saved progress for each child. Nothing to set up, no card required, nothing to cancel.
- ✓ All 1,880 lessons, Grades 1–6, every subject
- ✓ Profiles + saved progress for every kid
- ✓ Printable lessons with answer key