Original Research Published on 16 Apr 2019 Sleep Is Compromised in −12° Head Down Tilt Position in Environmental, Aviation and Space Physiology Alessa L. BoschertDavid ElmenhorstPeter GaugerZhili LiMaria T. Garcia-GutierrezDarius GerlachBernd JohannesJochen ZangeAndreas BauerJörn Rittweger Frontiers in Physiology doi 10.3389/fphys.2019.00397 20,924 views 12 citations