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After long day at work, as well as on the earth, the worker in space goes to sleep at night, then wakes up next day and prepares for work again and again. There are some differences, though.
In space isn't present "up" or "down", and there is no weight. As result, astronauts are weightless and you can sleep in any situation. Nevertheless, they have to be attached to a wall, a chair or a bed in a crew cabin that they don't swim aroundSpace station crews usually sleep in sleeping bags. At space station there I ate two small cabins of crew. Everyone rather big for one person.
Inside both cabins of crew are a sleeping bag and a big window and looked in space. Now space station crews have three astronauts of life and work in space within several months. Where the third astronaut to sleep? He to sleep anywhere and in space station, they simply join somethingExpedition two Yury Usachev, the commander and the flight engineer James Voss slept in a crew cabin in the office module "star". The flight engineer Susan Helms slept in "Destinee's" laboratory
As a rule, astronauts to sleep for eight hours at the end of every day. When time came to wake up, space station the crew uses an alarm clock