Prof. YU Kai Ching, CalvinCalvinProf. YU Kai Ching2026-02-032026-02-032025Dreaming, 2025, vol. 35(4), pp. 373-384.1053-07971573-3351http://hdl.handle.net/20.500.11861/26690This study examined whether rapid eye movement (REM) sleep mentation provides more pertinent material for dream interpretation compared to non-REM (NREM) sleep mentation. Seventeen participants spent three consecutive nights at a sleep laboratory, where awakenings were scheduled to collect dream reports from both REM and NREM sleep. Participants interpreted their dreams using guided questions based on the Hill cognitive-experiential model. External judges evaluated dreamers’ insight and the interpretation process. Results indicated that REM dream reports contained significantly longer and more complex narratives compared to NREM dream reports. Participants did not generate more associations from REM dreams than from NREM dreams; however, they derived more meaningful insight from REM dreams. Additionally, participants were significantly more likely to report gaining inspiration or solving problems through REM dreams than through NREM dreams, with a moderate effect size. (PsycInfo Database Record (c) 2025 APA, all rights reserved)enDream AnalysisEye MovementsNREM SleepREM DreamsREM SleepPeer Reviewed Journal Article10.1037/drm0000324