A tribute documentary to Prof. Bedrich Roth who defined the disease Idiopathic Hypersomnia. Interviews with Prof. Jan Roth, Bedrich Roths Son and Prof.\rbr\rbr\rbr\rbrIdiopathic Hypersomnia Hypersomnia is to much sleep.\rbr\rbrIn this video on GMTV UK, Dr Anu Bhatia is spot on with the 3 main symptoms of the complete form of Idiopathic Hypersomnia. Prolonged nighttime sleep .