Best Supplements for Sleep: Evidence-Based Guide
The most effective supplements for better sleep backed by clinical research. Magnesium, L-theanine, apigenin, glycine, and more — with dosing and timing.
In This Guide
Why Sleep Supplements Work
Sleep is the foundation of every health protocol. Without quality sleep, peptide therapy, HRT, and supplements all underperform. Sleep supplements work by supporting the biological pathways involved in sleep onset, sleep depth, and circadian rhythm regulation. They are not sleeping pills — they address the underlying reasons your sleep is disrupted.
Magnesium: The #1 Sleep Supplement
Magnesium is involved in over 300 enzymatic reactions including GABA activation, the primary inhibitory neurotransmitter that calms the nervous system. Most people are deficient. The form matters — magnesium glycinate and magnesium threonate are the best for sleep.
- ✓Magnesium Glycinate: 400-600mg before bed — calming, well-absorbed, minimal GI issues
- ✓Magnesium L-Threonate: 2,000mg before bed — crosses the blood-brain barrier, enhances deep sleep
- ✓Avoid magnesium oxide — poor absorption, primarily a laxative effect
L-Theanine
L-Theanine is an amino acid found in green tea that promotes relaxation without sedation. It increases alpha brain wave activity, reduces anxiety, and enhances sleep quality. Take 200-400mg about 30-60 minutes before bed. It pairs exceptionally well with magnesium.
Apigenin
Apigenin is a flavonoid found in chamomile that binds to GABA receptors and promotes sleepiness. It has gained popularity through the Huberman Lab podcast. Standard dose is 50mg before bed. It is mild and well-tolerated, making it a good addition to a sleep stack.
Glycine
Glycine is an amino acid that lowers core body temperature — a critical trigger for sleep onset. Research shows 3g of glycine before bed improves sleep quality, reduces time to fall asleep, and decreases daytime fatigue. It also supports growth hormone release during sleep.
The Optimal Sleep Stack
A well-designed sleep supplement stack addresses multiple pathways. A solid evidence-based stack looks like: Magnesium Glycinate 400mg + L-Theanine 200mg + Apigenin 50mg, taken 30-60 minutes before bed. Add Glycine 3g if core body temperature regulation is an issue. Rotate in melatonin (0.3-0.5mg — not the 5-10mg most products contain) only for jet lag or shift work.
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This content is for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before starting any health protocol.