And, like many other aspects of space travel, astronaut sleep is heavily monitored and regulated. Universal History Archive/Universal Images Group/Getty ImagesDeep Space, Deep Sleep, Deep ProblemsWe might be testing these challenges soon. “Some people love sleeping in space, and some people hate sleeping in space.”“Some people love sleeping in space, and some people hate sleeping in space,” Lehnhardt explains. Right now, the best Earthbound analogy for astronaut sleep schedules is to look at the way submariners sleep and get through the day. In other words, we need to take a close look at more astronauts sleeping in more situations in space.