The Mystery of Sleep(2010)01/01/2010 (US)Documentary0h 45m6.0ShareOverviewSleep experts explore how the discovery of REM (rapid eye movement) opened up a fascinating new field of research on dreams, sleep disorders and more.Mel StuartDirectorMel StuartWriterPopularity TrendLast 30 DaysThis chart shows the popularity trend over the past 30 days.MediaVideos (0)Backdrops (0)Posters (1)Recommendations65%Welcome to Marwen80%Oppenheimer81%Joker79%Titanic69%Birds of Prey (and the Fantabulous Emancipation of One Harley Quinn)75%The Suicide Squad84%Spider-Man: Into the Spider-Verse82%Green Book77%PK81%Zack Snyder's Justice League81%The Truman Show74%Once Upon a Time... in Hollywood80%Cruella73%Extraction78%The Perks of Being a Wallflower77%All Quiet on the Western Front87%The Shawshank Redemption72%Tenet75%The Lighthouse81%Call Me by Your NamePrevious slideNext slide