Passionflower is not a general sleep herb and it is not the latest social-media answer to “stress.” It is a nervine chosen for a particular tissue state: tension and constriction of the nervous system, often with the secondary exhaustion that follows prolonged overstimulation.

Sleep troubles linked to tension and anxiety are common challenges for many people. Among the many herbs used to ease evening tension, passionflower stands out as a nervine with a long tradition of calming effects.