https://www.brown.edu/academics/contemplative-studies/sites/brown.edu.academics.contemplative-studies/files/uploads/Britton2010%20%20MBCT%20and%20PSG%20sleep.pd

https://www.brown.edu/academics/contemplative-studies/sites/brown.edu.academics.contemplative-studies/files/uploads/Britton2010%20%20MBCT%20and%20PSG%20sleep.pdf https://www.brown.edu/academics/contemplative-studies/sites/... I think this is the study. "Amount of MM practice was correlated with increased PSG arousals, awakenings, stage 1 and decreased SWS, in a linear dose-dependent fashion."