Mindfulness-based cognitive therapy group had greater improvement in depression scores associated with increased objective arousal, decreased self-reported (subjective) arousal

University of California, Davis

MBCT patients had larger decrease in beckman depression index scores than controls. However, there is no correlation between change in depression scores and any sleep variables or between change in beckman depression index scores and meditation practice amount in MBCT group.

Correlations between depression results, polysomnographic sleep, and MBCT

Britton, W. B., Haynes, P. L., Fridel, K. W., &amp; Bootzin, R. R. (2010). Polysomnographic and subjective profiles of sleep continuity before and after mindfulness-based cognitive therapy in partially remitted depression. Psychosomatic Medicine, 72(6), 539–548. https://doi.org/10.1097/psy.0b013e3181dc1bad 

Polysomnographic and Subjective Profiles of Sleep Continuity Before and After Mindfulness-Based Cognitive Therapy in Partially Remitted Depression

Changes in BDI scores negatively correlated with changes in awakenings, arousals, stage 1 minutes -> improvements in depression associated with increased arousal/awakenings and stage 1 sleep

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