Purpose: The aim of this study was to compare the subjective sleep influenced by duration of chronic pain with temporomandibular disorders (TMD), burning mouth syndrome (BMS) and trigeminal neuralgia(TGN) patients.Methods: Subjects in the Orofacial and Head Pain Clinic, Nihon University Hospital at Matsudo were selected according to the research Diagnostic Criteria for TMD (n=1838), International Association for the Study of Pain criteria for BMS (n=396), and the International Classification of Headache Disorders for TGN (n=108). In each disorder, subjects classified acute stage group (< 3 month), middle stage group (from 3 month to 6 month), and chronic stage group (> 6 month) according to lengthen chronic pain. Difficulty falling asleep (DFS), arousal during sleep (AS), and early-morning awakening (EA) scores were evaluated from questionnaire in each group from all disorders.Results: DFS, AS, and EA at chronic stage group in TMD were significantly higher than at acute stage group and middle stage group (p<0.01). DFS, and AS at chronic stage group in BMS were significantly higher than at acute stage group and middle stage group (p<0.05). There were no significantly differences in DFS, AS, and EA between each group in TGN.Conclusions: Our result suggests that quality of sleep in TMD and BMS patients influenced by their lengthen chronic pain.