Passionflower Herbal Tea Shown To Improve Sleep Quality

Despite a lack of clinical evidence, passionflower-based herbal tea has been used traditionally as a sedative and remedy for sleep disturbance. In this double-blind, placebo-controlled Australian study among 41 participants aged 18-35 who kept sleep diaries, researchers used polysomnography to test the effects of a passionflower tea versus a placebo tea. The researchers analyzed six sleep-diary measures, finding that sleep quality was significantly better for the passionflower tea group compared with the control. They concluded that “the consumption of a low dose of Passiflora incarnate (passionflower) in the form of tea yields short-term subjective sleep benefits for healthy adults with mild fluctuations in sleep quality.”