[Comparison between good and poor sleep in the 20 to 30-year-old age range: polygraphic findings and psychopathologic...

Fifty-six poor sleepers, aged from 20 to 30, were compared with 46 good sleepers of the same age regarding objective sleep parameters and personality. A gradation of sleep disorders was observed. The degree of sleep disorders was found to be directly proportional to the degree of psychological disturbance. Psychophysiological group of poor sleepers exhibited objective differences from good sleepers during the first cycle only (lack of SWS and REM sleep). Sleep organization in the first cycle seemed important for the estimation of poor or good sleep by the sleeper.