Sleep in space
Sleeping in space requires that travelers sleep in a crew cabin, a small room about the size of a shower stall. They lie in a sleeping bag which is strapped to the wall. Astronauts have reported having nightmares, dreams, and snoring while sleeping in space.
Sleeping and crew accommodations need to be well ventilated; otherwise, astronauts can wake up oxygen-deprived and gasping for air, because a bubble of their own exhaled carbon dioxide had formed around their heads. Brain cells are extremely sensitive to a lack of oxygen and brain cells can start dying less than 5 minutes after their oxygen supply disappears; the result is that brain hypoxia can rapidly cause severe brain damage or even death. A decrease of oxygen to the brain can cause dementia and brain damage, as well as a host of other symptoms.
- "A Day in the Life Aboard the International Space Station". NASA.
- NASA - Sleeping in Space
- "Daily life". ESA. 19 July 2004. Retrieved 28 October 2009.
- Cerebral hypoxia
- Dementia From Oxygen Deprivation
- Astronaut set to make history for longest stay in space