Body & Senses
Why do we need sleep?
Puschel wants to keep playing, but notices that he is tired.
The short answer
Sleep supports health, learning and memory. Your body keeps working: heart and breathing do not stop. A restful daytime break can help, but does not replace needed sleep.
An imagined Wusel scene
Puschel and Flauschi investigate
Early in the evening, the two play with large wooden blocks on their picnic blanket. Puschel wants to build another row, but a block slips from his paw.
Puschel“My next idea is awake. The rest of me is yawning.”
Flauschi“Then the idea can wait until tomorrow.” Together they put the blocks in their box.
Puschel“Does the body switch everything off at night?” Flauschi“In people, no. The heart and breathing keep working. Sleep also helps learning and memory.”
Puschel puts away the last block. Puschel“Tomorrow is another Wusel day.” Flauschi nods. Neither needs to make tiredness disappear.
Little Wusel quiz
What continues during sleep?
Choose one answer: a), b).
- a)Heartbeat and breathing
- b)Everything in the body switches off
Show answer
Correct answer: a): Heartbeat and breathing Heartbeat and breathing continue; sleep is not a complete shutdown.
How can sleep help the brain?
Show answer
Sleep supports learning and memory.
Explore in more detail
Here you will find longer explanations and further details. You can explore them together.
Understand step by step
How it works – simply explained
The body is not switched off
You keep breathing, the heart beats and the brain works during sleep. Sleep is a special bodily state, not simply doing nothing.
Learning is processed
The brain handles information during sleep too. Sleep supports the strengthening of memories. A practised task may feel more familiar after a night, though this is not guaranteed.
Regular rest matters
Tiredness often makes concentration harder. A quiet play break may help but cannot replace enough sleep. Adults can help establish a suitable sleep routine.
References for this explanation: [1]
The key points again
Discovery 1
Sleep is important for health. The body keeps working while we sleep: for example, we breathe and our heart beats.
Source: [1]
Discovery 2
Sleep supports learning and memory. Too little sleep or poor sleep can make paying attention to one thing harder.
Source: [1]
Discovery 3
In children, sleep also supports growth and development. Sleep is more than a break from playing; regular opportunities to sleep are one of our needs.
Source: [1]