失眠与日常功能障碍维度相关的生理睡眠特征

Daily dysfunction is a key criterion of insomnia, but its underlying structure and relationship with objective sleep physiology remain unclear. This study aimed to identify the dimensions of subjective daily dysfunction using exploratory factor analysis (EFA) in individuals with insomnia and to examine its association with polysomnography (PSG) macroarchitecture, electroencephalographic (EEG) spectral power and odds ratio product (ORP)-based sleep depth in individuals with and without insomnia. We hypothesized that more severe daily dysfunction would be associated with poorer sleep continuity,