Best Passionflower for Sleep
Top 2 products ranked
Last reviewed May 2026
Clinical dose: 250–500 mg
Why Passionflower for Sleep
Passionflower plays a supporting role in sleep. Passionflower may improve subjective sleep quality primarily through anxiolytic mechanisms involving GABA-A receptor modulation. Limited RCTs exist, mostly small and focused on anxiety rather than sleep directly. In clinical studies, passionflower limited evidence for sleep quality improvement.
What dose to look for
Clinical studies typically use 250–500 mg of passionflower. Extract form; limited clinical data available. Products below this range may not deliver meaningful results.
What the research says
Passionflower has limited clinical evidence for sleep benefits. Very limited clinical trials, mostly small and focused on anxiety rather than sleep directly Learn more
Clinical research on Passionflower (Passiflora incarnata)
LOW — Limited RCTs, mainly anxiety-focused · 250–500 mg extract
- •A few small RCTs suggest passionflower may improve subjective sleep quality, primarily through anxiolytic mechanisms.
- •One study found passionflower tea for 7 days significantly improved sleep quality on diary measures compared to placebo.
- •Often combined with valerian and hops — combination trials show positive results, but cannot attribute effects to passionflower alone.
