Effect of caffeine and coffee on sleep quality varies, based on individual factors
02 February 2016 – Coffee, Caffeine, and Sleep1, a systematic review by Ian Clark2 and Prof. Dr. Hans Peter Landolt3, both of the University of Zürich, examines the results of 58 peer-reviewed epidemiological studies and clinical trials into the effects of caffeine and coffee on sleep.
Overall, the review finds that caffeine typically prolonged sleep latency, reduced total sleep time and sleep efficiency, and worsened perceived sleep quality. Caffein…
Coffee and Health