Natural Remedies for Insomnia
Ten natural remedies for insomnia — from amino acids and adaptogens to minerals and botanicals — used by functional medicine and naturopathic practitioners worldwide.
Top Natural Remedies for Better Sleep
From amino acids to adaptogens, these are the most researched natural insomnia interventions used by functional medicine and naturopathic practitioners worldwide.
Magnesium Glycinate
MineralThe most bioavailable form of magnesium for sleep. Glycinate crosses the blood-brain barrier and activates GABA receptors, calming neural activity and preparing the body for sleep.
200–400 mg elemental magnesium, taken as glycinate or bisglycinate
30–60 minutes before bed
Valerian Root
HerbOne of the most studied herbal sedatives in history. Valerian increases GABA availability by inhibiting its reuptake and stimulating its release, producing a calming effect without morning grogginess.
300–600 mg standardized extract (0.8% valerenic acid)
30 minutes to 2 hours before bed; allow 2–4 weeks for full effect
Passionflower
HerbPassiflora incarnata works through GABAergic mechanisms, binding to GABA-A receptors. Particularly effective for anxiety-driven insomnia — the racing thoughts that prevent sleep onset.
250–500 mg extract, or 1–2 cups of passionflower tea
1 hour before bed
L-Theanine
Amino AcidFound naturally in green tea, L-theanine promotes alpha brain wave activity — the relaxed-but-alert state that precedes sleep. It reduces anxiety without sedation, making it ideal for those whose minds race at night.
200–400 mg
30–60 minutes before bed; can also be taken during the day for anxiety
Ashwagandha
AdaptogenThis powerful adaptogen (Withania somnifera — 'somnifera' literally means 'sleep-inducing') normalizes cortisol rhythms and reduces the HPA axis hyperactivation that drives stress-related insomnia.
300–600 mg KSM-66 or Sensoril extract
With dinner or 1 hour before bed
GABA (Gamma-Aminobutyric Acid)
Amino AcidThe brain's primary inhibitory neurotransmitter. Supplemental GABA may calm overactive neural circuits, though debate exists about whether it crosses the blood-brain barrier in supplement form.
100–300 mg PharmaGABA
30 minutes before bed
5-HTP
Amino Acid5-Hydroxytryptophan is the direct precursor to serotonin, which converts to melatonin in the pineal gland. It supports the body's natural melatonin production pathway rather than supplying exogenous melatonin.
50–200 mg (start low at 50 mg)
30–45 minutes before bed; take with B6 for optimal conversion
Tart Cherry Extract
Fruit ExtractTart cherries are one of the few natural food sources of melatonin. They also contain procyanidins and anthocyanins that inhibit indoleamine 2,3-dioxygenase, increasing tryptophan availability for serotonin and melatonin synthesis.
480 ml (16 oz) tart cherry juice or 500 mg extract
Twice daily — morning and 1–2 hours before bed
Glycine
Amino AcidThis simple amino acid lowers core body temperature by dilating peripheral blood vessels — a critical trigger for sleep onset. It also acts as an inhibitory neurotransmitter in the brainstem and spinal cord.
3 g (3,000 mg)
1 hour before bed; can also be dissolved in warm water as a tea
CBD (Cannabidiol)
CannabinoidCBD interacts with the endocannabinoid system, serotonin receptors, and GABA signaling. At higher doses (160+ mg), it shows sedative properties. Lower doses may reduce anxiety that interferes with sleep onset.
25–160 mg full-spectrum CBD oil
1–2 hours before bed; effects vary significantly between individuals
Disclaimer: This information is for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare practitioner before starting any supplement regimen, especially if you are pregnant, nursing, taking medications, or have a medical condition.
Products for Better Sleep
Practitioner-recommended products to support your sleep journey.
FeaturedDoctor's Best High Absorption Magnesium Glycinate
Highly absorbable form of magnesium that calms the nervous system and supports deep, restorative sleep. One of the most consistently recommended supplements by functional medicine practitioners.
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FutureYou Serene+ Saffron, Lavender and Magnesium
A practitioner-grade evening blend combining affron saffron, lavender and magnesium — three ingredients with human trial data behind them for relaxation and sleep quality. From Cambridge-based FutureYou.
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CherryActive Montmorency Tart Cherry Concentrate 946ml
100% pure Montmorency tart cherry concentrate — natural source of melatonin. One bottle = 3,000 cherries. Add to water 1 hour before bed.
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Organic Ashwagandha KSM-66 600mg
Adaptogenic herb clinically shown to lower cortisol and improve sleep quality. KSM-66 is the most-studied standardised extract.
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