Best Natural Supplements for Better Sleep (Beyond Melatonin)

Melatonin gets most of the attention when people look for sleep support, but it is not the only option — and it is not always the best starting point. Many people sleep better when they address nervous system calm, muscle relaxation, or stress resilience rather than simply signalling “time for bed.”

This guide focuses on evidence-informed natural options that support sleep quality without relying solely on melatonin. We will cover magnesium, glycine, ashwagandha, and well-formulated herbal blends, along with practical product recommendations available at Optimize Nutrition.

Why Look Beyond Melatonin?

Melatonin can be useful for shifting sleep timing (jet lag, shift work, or delayed sleep phase). However, many people struggle with sleep because of tension, racing thoughts, low magnesium status, or elevated stress — areas where other nutrients and adaptogens may offer more relevant support.

The goal is not to replace healthy sleep habits. Consistent bedtime, light exposure, caffeine timing, and a wind-down routine remain the foundation. Supplements work best as supporting tools.

Magnesium Bisglycinate: The Most Practical Starting Point

Magnesium is involved in nervous system regulation, muscle relaxation, and hundreds of enzymatic processes. Magnesium bisglycinate (also called magnesium glycinate) is frequently preferred for evening use because it is generally well tolerated and less likely to cause loose stools than citrate or oxide forms.

Glycine itself plays roles in the nervous system, which is one reason this form appears often in nighttime formulas.

A 2025 randomized controlled trial found that magnesium bisglycinate produced a modest improvement in insomnia severity compared with placebo. The effect was not dramatic, so magnesium should not be viewed as a sleep medication, but the research supports its common use in evening routines.

Often chosen for:

Evening relaxation and muscle calm
People with sensitive digestion
Everyday magnesium support that also aids sleep quality
Those who want a simple, non-sedating option

Optimize Nutrition Staff Pick
CanPrev Magnesium Bis Glycinate 200mg
Each capsule provides 200 mg of elemental magnesium from bisglycinate in a formula designed to be gentle on digestion.
Best fit: Most people’s first choice for nighttime magnesium support.

Glycine: Simple Amino Acid Support

Glycine is a non-essential amino acid that has been studied for its effects on sleep quality and next-day alertness. Research suggests doses around 3 grams before bed may help some people fall asleep faster and feel more rested.

It is mild, non-habit-forming, and pairs well with magnesium.

Often chosen for:

Supporting sleep onset and sleep quality
People who prefer a single-ingredient amino acid
Combining with magnesium bisglycinate

Optimize Nutrition Staff Pick
Natural Factors L-Glycine 500mg
Provides free-form glycine in a straightforward vegetarian capsule.
Best fit: Those who want to add glycine specifically or stack it with magnesium.

Ashwagandha: Stress Resilience That Can Support Sleep

Ashwagandha is one of the better-researched adaptogens for perceived stress. By supporting a healthier stress response, it may indirectly improve sleep quality — particularly for people who feel “tired but wired” or have trouble winding down.

Sensoril® is a clinically studied extract used in several quality formulas.

Often chosen for:

High stress or mental overactivity that interferes with sleep
Supporting relaxation without strong sedation
Daytime or evening use depending on the formula

Optimize Nutrition Staff Pick
Fortitude Health Senses (Sensoril Ashwagandha)
A premium Sensoril® ashwagandha formula designed for stress management and mental balance.
Best fit: Stress-driven sleep issues.

Also available: Living Alchemy Ashwagandha Alive (fermented form) for those who prefer a living-culture approach.

Comprehensive Sleep Blends

Some people prefer an all-in-one formula that combines several calming ingredients.

New Roots Sleep8
A non-habit-forming herbal blend that includes chamomile, passionflower, hops, skullcap, catnip, magnesium bisglycinate, and a low dose of melatonin (500 mcg). It is designed to support relaxation and the sleep-wake cycle without high melatonin doses.
Best fit: Those who want a multi-herb formula with gentle melatonin support.

Blue Star Nutraceuticals GH Peak
A nighttime formula that combines melatonin, valerian root, Sensoril® ashwagandha, 5-HTP, and amino acids.
Best fit: People looking for a more comprehensive multi-ingredient sleep support product.

Quick Decision Guide

Want the simplest, most evidence-supported starting point? → CanPrev Magnesium Bisglycinate
Prefer to add an amino acid? → Natural Factors L-Glycine (alone or with magnesium)
Sleep issues feel driven by stress or racing thoughts? → Fortitude Health Senses (Sensoril Ashwagandha)
Want a multi-ingredient herbal formula with low-dose melatonin? → New Roots Sleep8
Prefer a broader nighttime blend? → Blue Star GH Peak

Important Notes

Supplements are not a substitute for addressing sleep hygiene, underlying medical issues, or mental health concerns.
Ashwagandha may not be suitable during pregnancy or for people with certain thyroid or autoimmune conditions.
Start with one change at a time so you can evaluate what actually helps.
Consistent timing matters more than chasing the “perfect” product.

The Bottom Line

For many people, magnesium bisglycinate is the most practical and well-tolerated foundation for better sleep support. Glycine and ashwagandha can add further benefit depending on individual needs, while targeted blends offer convenience when multiple ingredients are desired.

Focus first on the basics — consistent schedule, light management, and a proper wind-down — then layer in the supplement that best matches your situation.

Customers who are unsure which option fits their needs can speak with the Optimize Nutrition team in Nanaimo or shop the full stress, mood, and sleep selection online with Canada-wide shipping.

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Browse the Stress & Mood and magnesium collections for additional options.

Oct 01, 2026 Hayley Dickenson, RHN