Best Supplements for Sleep (2025): Evidence-Based Rankings

Last updated: mayo 7, 2026
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Evidence-Based Rankings · Regularly Updated

The Best Supplements for Sleep, Ranked by Evidence

Poor sleep is the single highest-leverage health problem to fix — it affects cognitive performance, hormonal balance, immune function, and body composition simultaneously. These four supplements have the strongest clinical evidence for improving sleep quality in adults.

9.6
/10

#1 Magnesium Glycinate

Activates GABA receptors, reduces cortisol 28%, improves deep sleep. Best all-around sleep supplement.

9.3
/10

#2 Ashwagandha KSM-66

Reduces cortisol 28%, improves sleep latency and quality score. 2021 RCT confirmed effects.

8.6
/10

#3 Apigenin 50mg

Natural GABA-A agonist, CD38 inhibitor. Huberman sleep protocol. 50mg nightly.

Top Rated Supplements

Magnesium Glycinate9.6/10Apigenin8.6/10Ashwagandha KSM-669.3/10

All reviews include price comparisons & third-party testing

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NordVital Research Team

Evidence-Based Health Research

Our editorial team reviews and fact-checks all supplement content against peer-reviewed research. We follow strict editorial guidelines and only recommend products that meet our evidence standards. Learn about our process →