title: Evaluation of sleep in space flight.
authors.affiliation: Solar-Terrestrial Influences Laboratory, Bulgarian Academy of Sciences, Sofia, Bulgaria.
authors.forename: I
authors.initials: I
authors.lastname: Stoilova
authors.forename: T
authors.initials: T
authors.lastname: Zdravev
authors.forename: T
authors.initials: T
authors.lastname: Yanev
mesh_terms: D000328:Adult; D000337:Aerospace Medicine; D018480:Astronauts; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D017286:Polysomnography; D012890:Sleep / Q000502:physiology*; D012894:Sleep Stages / Q000502:physiology; D013026:Space Flight; D013997:Time Factors; D014893:Weightlessness