ESA - Sleeping quarters
ESA Astronaut Alexander Gerst tests lunar module living conditions at Thales Alenia Space in Turin
How astronauts sleep in space
NASA seeks plan to safely land International Space Station: Here's why
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How Do People Survive in Space? A Look at Astronauts on the ISS - Owlcation
Watch an astronaut prepare for bed in space
File:ISS-27 American crew quarters.jpg - Wikipedia
NASA's Lunar Gateway space station will be so tiny that astronauts won't be able to stand
ESA - Sleeping quarters
ESA studies impact of hibernating astronauts on space missions
An Astronaut's Most Important Fan – Now I Know
Samantha Cristoforetti: interview with an ESA astronaut