Recurrent hyper- and hyposomnia: a new diagnostic entity? Polysomnographic findings and a 30-year follow-up Recurrent hyper- and hyposomnia: a new diagnostic entity? Polysomnographic findings and a 30-year follow-up Download Web Watch – Volume 2 Issue 6 Article reviewed: REM sleep behavior disorder in sleep-disordered patients with versus without Parkinson’s disease: is there a need for polysomnography?