4. When it comes to sleeping, there’s no need for a bedroom! The astronauts could sleep anywhere, but they can’t risk bumping into any computer controls so they strap themselves into a sleeping bag in the wall. It’s a truly relaxing experience, as nothing presses against the skin. It’s important to cover your eyes, however, to block out the light of the sun as the sun rises and sets every 45 minutes when you are orbiting the Earth.
