Kadenyuk sleeps strapped to the middeck wall

STS087-323-030 (19 November – 5 December 1997) ---
Ukrainian payload specialist Leonid K. Kadenyuk blocks out the world and much more as he sleeps on the mid-deck of the Earth-orbiting Space Shuttle Columbia. Kadenyuk joined five NASA astronauts for 16 days aboard Columbia in support of the United States Microgravity Payload (USMP) mission.