12 SUPPLEMENTS · UPDATED 2026-07-01
Supplements — 12 evidence-based picks reviewed
Prices from brand-direct stores and Amazon. Firmness, cooling, trial length, and warranty compared side-by-side. Data curated by sleep engineers — no sponsored ranking.
How to choose
Three steps to the right pick
1
Match it to how you sleep
Your position, budget and the problem you're fixing narrow the field fast.
Take the 60-sec quiz →2
Compare the shortlist
Weigh the picks head-to-head on the specs that matter — filter and sort the table.
Jump to comparison ↓3
Check the price, then buy
Prices move — we show the last-checked figure and send you to the retailer's live price.
See best prices →Price comparison
12 of 12 shown. Click any product for the full review + all retailer prices.
BrandProductScoreFormBest price
Doctor's Best
Doctor's Best High Absorption Magnesium Glycinate 200mg (240ct)
Editor's ChoiceTop rated
The highest-rated magnesium on Amazon for sleep — glycinate form is chelated for maximum absorption without laxative effects.
9/10
Magnesium bisglycinate chelate (TRAACS)
$19.99
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NOW Foods
NOW Foods L-Theanine 200mg (120ct)
200mg L-theanineTop rated
The best-value pure L-theanine — 200mg per capsule, GMP-certified, and $17 for 120 servings.
8.4/10
200mg L-theanine
$16.99
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Nature Made
Nature Made Melatonin 5mg (240ct)
5mg melatoninTop rated
The USP-verified melatonin your GP would actually recommend — same dose as prescription-adjacent formulations at a third of the price.
8.2/10
Immediate-release tablet
$11.99
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Life Extension
Life Extension Neuro-Mag Magnesium L-Threonate
The brain-first magnesium — L-threonate is the form studied for crossing into the brain, aimed at racing-mind nights and cognitive support.
8.1/10
Capsule (3/serving)
$30.38
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Natrol
Natrol Melatonin 5mg Fast Dissolve
Melatonin 5 mgTop rated
The fast-dissolve standard — strawberry tablets that melt under the tongue, no water needed, from the #1 melatonin brand.
8/10
Fast-dissolve tablet
$8.49
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Nested Naturals
Nested Naturals LUNA Sleep Aid
The kitchen-sink botanical — melatonin, valerian, chamomile, L-theanine and magnesium in one capsule, with a melatonin-free version for purists.
7.9/10
Vegan capsule
$18.95
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Sports Research
Sports Research L-Theanine 200mg
Top rated
Calm without drowsiness — Suntheanine-grade L-theanine in coconut-oil softgels, the daytime-safe anxiety ally that also smooths sleep onset.
7.9/10
MCT-oil softgel
$17.95
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Olly
Olly Sleep Gummies (3mg melatonin + L-theanine, 50ct)
3mg per 2 gummiesTop rated
The most popular sleep gummy on Amazon — 3mg melatonin + L-theanine + botanicals in blackberry flavor. Effective if you don't mind sugar.
7.8/10
3mg per 2 gummies
$14.99
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ZzzQuil
ZzzQuil PURE Zzzs Melatonin Gummies
Top rated
The drugstore favorite — low-dose melatonin plus botanicals in a gummy, from the brand your pharmacy already stocks.
7.8/10
Gummy
$11.97
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NOW Foods
NOW Magnesium Citrate 200mg
Top rated
The budget workhorse — well-absorbed citrate form from a GMP-certified 50-year brand, at the lowest cost per mg in our lineup.
7.7/10
Tablet
$11.09
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Nature's Bounty
Nature's Bounty Ashwagandha 470mg (60ct)
470mg ashwagandhaTop rated
The mainstream ashwagandha at Costco/CVS price — 470mg per capsule of standardized extract for cortisol-driven sleep issues.
7.6/10
470mg ashwagandha
$11.99
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Vitafusion
Vitafusion Max Strength Melatonin 10mg Gummies
Top rated
The max-dose gummy — 10mg per serving for established high-dose users, from America's biggest gummy-vitamin brand.
7.4/10
Gummy
$10.49
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Best for...
2 category winners — different needs, different picks. All editorially scored against measured specs.
11 brands compared · updated weekly
Brands in this category
Doctor's Best
NOW
Nature Made
Life Extension
Natrol
Nested Naturals
Sports Research
olly
ZzzQuil
Nature's Bounty
Vitafusion
Decision engine
Compare any 2 mattresses side-by-side
Head-to-head verdicts across 10 dimensions — active dose, form, evidence, safety, value per serving.
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VS · HEAD-TO-HEAD
Doctor's Best High Absorption Magnesium Glycinate 200mg (240ct)vsNature Made Melatonin 5mg (240ct)
$19.99·$11.99
VS · HEAD-TO-HEAD
Doctor's Best High Absorption Magnesium Glycinate 200mg (240ct)vsOlly Sleep Gummies (3mg melatonin + L-theanine, 50ct)
$19.99·$14.99
VS · HEAD-TO-HEAD
Doctor's Best High Absorption Magnesium Glycinate 200mg (240ct)vsNOW Foods L-Theanine 200mg (120ct)
$19.99·$16.99
VS · HEAD-TO-HEAD
NOW Foods L-Theanine 200mg (120ct)vsNature Made Melatonin 5mg (240ct)
$16.99·$11.99
VS · HEAD-TO-HEAD
Nature Made Melatonin 5mg (240ct)vsOlly Sleep Gummies (3mg melatonin + L-theanine, 50ct)
$11.99·$14.99
VS · HEAD-TO-HEAD
Life Extension Neuro-Mag Magnesium L-ThreonatevsDoctor's Best High Absorption Magnesium Glycinate 200mg (240ct)
$30.38·$19.99
How to pick a sleep supplement in 2026
Five decisions collapse this whole category into a clear pick.
1. Start with magnesium, not melatonin
For garden-variety trouble winding down, magnesium glycinate (Doctor's Best) has the better evidence-to-side-effect ratio: it supports relaxation and muscle ease without morning grogginess. Glycinate specifically — oxide (in many cheap brands) absorbs poorly and works mostly as a laxative. 200-400 mg with dinner is the studied range.
2. Melatonin: less is more
The effective dose is 0.5-1 mg taken 1-2 hours before bed — the 10 mg gummies on every shelf are marketing, and higher doses cause more grogginess without working better. Melatonin shifts TIMING (jet lag, shift work, night-owl drift); it is not a knockout pill and tolerance to that use builds fast.
3. Capsule, gummy, or powder?
Capsules (Doctor's Best, NOW) give exact dosing with no sugar. Gummies (Olly) win on compliance — you'll actually take them — at the cost of 2-3 g sugar and looser dosing. Powders let you titrate but taste like it. Pick the form you'll take consistently at the same time nightly; consistency beats format.
4. Check the safety boxes
Magnesium interacts with some antibiotics and blood-pressure medication; melatonin with blood thinners and immunosuppressants. Pregnant, nursing, or on prescriptions → ask your pharmacist first, it's a free consult. Look for third-party testing (USP, NSF) — supplements are not FDA-approved products and the label is a promise, not a guarantee.
5. Judge value per night, not per bottle
Doctor's Best glycinate runs about $0.17/night over a 4-month bottle — the category's best ratio. Olly gummies cost 3-4x per night for the same actives plus sugar. A $20 bottle that lasts 120 nights is the cheapest legitimate sleep intervention on this site.
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