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Earth & Space

Explore together · A short start and more to discover

How do people sleep on a space station?

Sleeping without an ordinary bed? The Wusels explore life on a space station.

The Wusels inspect a model space-station cabin with an attached empty sleeping bag.
A Wusel story to explore.

The short answer

People and loose objects float inside the space station. Astronauts secure themselves in sleeping bags so they do not drift away. The crew plans regular sleep times; each rapid sunrise does not start a new working day.

The Wusels inspect a model space-station cabin with an attached empty sleeping bag.
The Wusels inspect a model space-station cabin with an attached empty sleeping bag.

An imagined Wusel scene

Puschel and Flauschi investigate

Puschel puts a figure on a bed in the model. Flauschi points to the floating objects beside it. They secure the figure in its model sleeping bag. He adds a schedule: a safe place and time to sleep belong together.

Try explaining it

Why are sleeping bags secured in the space station?

Choose a), b) or c), then explain your choice.

  • a)So the fastening replaces the body's missing sleep rhythm.
  • b)So sleepers do not drift away.
  • c)So gravity pulls them down more strongly while asleep.
Show the explanation

Correct: b): So sleepers do not drift away.

People and loose objects float inside the space station. Astronauts secure themselves in sleeping bags so they do not drift away. The crew plans regular sleep times; each rapid sunrise does not start a new working day.

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

How the steps connect
  1. A bed works differently here
  2. A sleeping bag holds position
  3. Schedules organise the day

A bed works differently here

On Earth weight presses us onto a mattress. In an orbiting station people and surroundings fall together, largely removing that familiar pressure.

A sleeping bag holds position

An attached sleeping bag prevents drifting during sleep. It need not lie on a horizontal floor. Sleeping is still possible.

Schedules organise the day

The station sees frequent sunrises, but each does not start a new human sleep-day. Planned work and sleep times help maintain rhythm.

References for this explanation: [1], [2]

The key points again

Discovery 1

People and objects in a space station are in shared free fall and appear weightless.

Source: [2]

Discovery 2

Astronauts can sleep in secured sleeping bags so they do not drift away.

Source: [1]

Discovery 3

Each visible sunrise does not define a normal day there. Planned sleep times help.

Source: [1]

Pictures and sources for adults