Before revision: An astronaut asleep in the microgravity of Earth orbit-continual free-fall around the Earth, inside the pressurized module Harmony node of the International Space Station in 2007 Sleeping in space is an important part of space medicine and mission planning, with impacts on the health, capabilities and morale of astronauts.
After revision: An astronaut asleep in the microgravity of Earth orbit-continual free-fall around the Earth, inside the pressurized module Harmony node of the International Space Station in 2007 Sleeping in space is part of space medicine and mission planning, with impacts on the health, capabilities and morale of astronauts.