Taking ashwagandha extract in milk every day for three months probably helps adults who struggle with sleep feel that their sleep has improved, with a higher dose (600 mg) appearing slightly more effective than a lower dose (250 mg).
Evidence from Studies
No evidence studies found yet.
What Would Prove This
Per GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this claim, ordered from strongest to weakest.
A meta-analysis of multiple RCTs would establish whether ashwagandha consistently improves subjective sleep quality across diverse populations, doses, and durations, and quantify the average effect size.
A systematic review and meta-analysis of all randomized controlled trials evaluating ashwagandha (250–600 mg/day) for subjective sleep quality in adults with self-reported sleep disturbances, using VAS or PSQI as primary outcomes, with at least 8 weeks of intervention, pooling data from studies with low risk of bias and sufficient sample sizes (n≥50 per arm).
A larger RCT would confirm whether ashwagandha causes a clinically meaningful improvement in subjective sleep quality compared to placebo, with sufficient power to detect differences between doses.
A double-blind, placebo-controlled RCT with 200+ healthy adults aged 18–45 reporting poor sleep (PSQI >5), randomized to 250 mg ashwagandha, 600 mg ashwagandha, or placebo in lactose-free milk, taken 30 min before bed for 90 days, with VAS as primary outcome and PSQI, ISI, and actigraphy as secondary outcomes.
A prospective cohort would determine whether regular ashwagandha use predicts sustained improvements in sleep quality over 6–12 months in real-world settings, accounting for lifestyle confounders.
A 12-month prospective cohort of 500 adults with self-reported sleep problems, tracking daily ashwagandha intake (dose and frequency), sleep quality via daily VAS, and covariates (stress, caffeine, screen time), with analysis adjusting for baseline characteristics and time-varying confounders.
A cross-sectional survey could identify associations between ashwagandha use and self-reported sleep quality in a general population, but cannot determine directionality or causality.
A national survey of 10,000 adults measuring current ashwagandha supplement use (dose, duration), sleep quality via PSQI, and demographic/lifestyle factors to assess cross-sectional associations.
A case series could document patterns of sleep improvement in individuals using ashwagandha, but cannot generalize or rule out placebo effects.
A case series of 20–30 individuals with chronic sleep problems who self-administered ashwagandha (250–600 mg/day) for 90+ days, documenting daily sleep logs and subjective changes, with no control group.