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DoNotAge

SureSleep

Adaptogen · Powder · 30 servings

Label snapshot

What the label says

What the product contains and what one serving costs, according to our catalog. Label amounts are not personal dose recommendations.

Ingredients listed
4 ingredients listed largest listed: L-Tryptophan 1,000 mg
Form
Powder
List price (catalog, USD)
$45.00
Price per serving
$1.50List price divided by servings per container. A per-day cost only if the label serving is once daily.

Reading notes

  • Multi-ingredient product. Amounts are per ingredient per serving; the product is assessed as one bundle, not as a recommendation for each ingredient.
  • Whether the figure is elemental mineral or compound weight is not stored. Read the label.
Full label record: servings, testing, ingredients
Servings per container
30
Serving size (label)
4 g
Catalog monthly estimate
$45.00
Testing disclosure
Brand lists third-party testing and a public certificate of analysis (CoA)Status as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Ingredients as listed

IngredientAmount per serving
Magnesium260 mg
L-Tryptophan1,000 mg
Tart Cherry500 mg
L-Theanine400 mg

What to check on the label

  • The extract name and plant part on the label. Extracts are not interchangeable milligram for milligram.
  • The withanolide percentage, if stated.
  • Whether the label gives per-capsule or per-day amounts.

Amounts are per label serving as recorded in the catalog and are not a recommendation. Testing status reflects what the brand lists. Nothing here is medical advice.

Editorial score and research-dose calculations

These calculations describe our scoring method. They are not a recommended dose or proof of benefit from this product.

7.7/10
Overall score
#1 / 9 in Adaptogen

Public lab certificate, tested by independent lab.

Read the evidence (3 studies)
Add to compareVisit brand site →
Tier 3
Ingredient RCT (matching dose)
The ingredient was tested in an RCT at the same dose this product sells.
See the 3 supporting studies
How we scored this product Show the full breakdown
Dose vs. studies (50%) Why 7.9 of 10. Primary ingredient is Magnesium (evidence grade A). It delivers 260 mg, inside the studied range of 200–500 mg. Read the rule → 7.9
Transparency (20%) Why 8.0 of 10. Earned points for public certificate of analysis and independent third-party testing and all doses disclosed. Read the rule → 8.0
Value (10%) Why 7.7 of 10. One day at the trial dose costs about $1.73. That is more expensive than average (177 of 313 by cost per effective day). Read the rule → 7.7
Formulation (10%) Why 5.0 of 10. No published absorption advantage or disadvantage on file. The default of 5 is not a criticism. Read the rule → 5.0 Default. No absorption data on file.
Safety (5%) Why 8.5 of 10. Baseline 5.0. Third-party testing adds 2.0. Public lab certificate adds 1.5. NSF, USP or Informed Choice certification adds 1.5. Active safety signal subtracts 3.0. Read the rule → 8.5
Community sentiment (5%) Why 8.8 of 10. No external reviews found, so community sentiment defaults to neutral. Community never counts as clinical evidence. Read the rule → 8.8
Composite How this 7.7 is built. 0.50 × 7.9 + 0.20 × 8.0 + 0.10 × 7.7 + 0.10 × 5.0 + 0.05 × 8.5 + 0.05 × 8.8 = 7.7 out of 10. Safety caps applied after. 7.7
7.7 composite
Dose vs. studies50%7.9
Transparency20%8.0
Value10%7.7
Formulation10%5.0
Safety5%8.5
Community5%8.8

Evidence gates dose: the evidence grade sets the ceiling, and the dose decides how much of that ceiling the product reaches. Value = inverse of price-per-trial-dose-day. Community = mean sentiment of external reviews. Safety caps applied after weighting.

This score is our editorial judgment, not a scientific standard. We combine published evidence, dose, price, transparency, and consumer signals into one composite: this is our method, not a peer-reviewed clinical rating. A higher score means a product does better on the factors we weight, not that it is medically proven to work.

Read the full method →

Editorial verdict

Quick verdict

7.7 / 10
Best for
Full trial dose, Public lab certificate
Avoid if
No major red flags
Full-dose status
Meets trial dose
Price/month
$45
COA status
Public
Biggest caveat
L-Theanine (400mg is 200% of the 200mg trial dose) is well above the trial dose. More is not always better.
Nearest alternatives
Catalog snapshot. Check linked sources for current price, label and batch-specific testing.
Price verification
Current price: $45.00
Last price check: Sep 01, 2026
Add to compareVisit brand site →
Layer 2 · Context
In plain language

Why this scored this way

This DoNotAge SureSleep scores 7.7, making it a strong scorer. It delivers 260mg of Magnesium, inside the studied range of 200–500mg with grade A evidence (strong human trial data). At $1.73/day it's among the more expensive options in Adaptogen.

What drives the score up

  • Dose-evidence score of 7.9 shows decent alignment with trial doses.
  • Tested by independent lab (transparency 8.0).
  • Community score of 8.8 with positive consumer feedback.
  • Magnesium is dosed at the full research level with grade A evidence (strong human trial data).
  • L-Tryptophan is dosed at the full research level with grade B evidence (promising human data, not yet comprehensive).

What drags it down

  • L-Theanine (400mg is 200% of the 200mg trial dose) is well above the trial dose. More is not always better.
  • At $1.73/day it's on the expensive side.

Why you'd choose it

  • You want Magnesium from a DoNotAge product.
  • You prioritise tested by independent lab products with public lab certificates.
  • You want doses that align with published research.

Why you might skip it

  • You want a standard dose of l-theanine (this product is well above it).
  • You want a cheaper option (this is $1.73/day).
Question 1

Does the molecule work?

The science behind each active ingredient, independent of which brand sells it.

Magnesium

One of the most common deficiencies; corrects sleep, muscle cramps, and blood pressure.

5 landmark RCTs · US: Dietary supplement · EU: Food supplement, health claims authorised
L-Tryptophan

An essential amino acid that serves as a precursor to serotonin and melatonin.

2 landmark RCTs · US: GRAS · EU: Permitted as supplement
Tart Cherry

A natural source of melatonin and anthocyanins with anti-inflammatory and sleep-supporting properties.

1 landmark RCT · US: GRAS · EU: Permitted as food
L-Theanine

The 'calm alertness' amino acid from green tea.

1 landmark RCT · US: GRAS · EU: Food supplement

Full ingredient breakdown

Every active in this formula, its declared dose per serving, the dose used in the primary human trial, how much of that trial dose this product delivers, and the evidence grade for the ingredient itself.

IngredientDose / servingResearch dose% of researchEvidence grade
Magnesium260 mg300 mg87%A
L-Tryptophan1000 mg1000 mg100%B
Tart Cherry500 mg480 mg104%B
L-Theanine400 mg200 mg200%B

Percentages are dose per serving ÷ primary trial dose. Below 50% means the formula is unlikely to reproduce the trial outcome for that active. Grade A = multiple large human RCTs. Grade F = no human evidence. How grades work. Full glossary →

Question 2

Is this bottle good?

The specific product: dose, price, transparency, and what buyers report.

Dose vs research
100% of trial dose
Meets or exceeds the published effective dose
Cost at trial dose
$1.73/day at trial dose
What one effective daily dose actually costs
Transparency
8.0/10 · Public lab certificate (quality: not assessed)
Independent batch testing confirmed
Consumer signals
No consumer signals collected yet
Operational signal only, never used as clinical evidence
Question 3

What's the catch?

Safety flags, transparency gaps, dosing concerns, and recurring buyer complaints.

Safety signals
Drug interaction risk — magnesium
Can reduce absorption/efficacy of oral bisphosphonates, tetracyclines, and quinolone antibiotics.
Read more
Buyer complaints
Reddit: Some users note the price ($45 for 30 servings) is higher than buying the individual ingredients separately. Tart cherry dose (500mg) is considered modest.; Trustpilot: Brand-level: occasional delivery errors, subscription issues, and international shipping delays. Some users report no noticeable effect from sleep supplements.
Recurring themes from consumer review platforms.
Plain English

What’s inside

The main ingredients of this product, in plain language.

Magnesium260 mgEvidence A

One of the most common deficiencies; corrects sleep, muscle cramps, and blood pressure.

Read about Magnesium →
L-Tryptophan1000 mgEvidence B

An essential amino acid that serves as a precursor to serotonin and melatonin.

Read about L-Tryptophan →
Tart Cherry500 mgEvidence B

A natural source of melatonin and anthocyanins with anti-inflammatory and sleep-supporting properties.

Read about Tart Cherry →
L-Theanine400 mgEvidence B

The 'calm alertness' amino acid from green tea.

Read about L-Theanine →
Layer 3 · Evidence vault

Product data & verification

Hard numbers and independently checked status. Expand each block for its source.

The numbers

Price
$45
per bottle · 30 servings
Dose vs. research
of trial dose 100%
of published effective dose
$ / day at studied dose
$1.73
what one effective daily dose costs
$ / g active
$0.69
per gram of active substance
Independently checked

Data verification

COA status
Public
Evidence grade
ABBB
Per-ingredient breakdown
AMagnesium
BL-Tryptophan
BTart Cherry
BL-Theanine

All product data is checked against original sources. Prices, doses, and testing status are updated when product pages change. Evidence grades are reviewed when new human RCTs are published. Read how we verify.

What's inside

Ingredient
Dose in this product
Trial dose
Evidence
260 mg 87% of trial dose
300 mg
L-Tryptophan
An essential amino acid that serves as a precursor to serotonin and melatonin.
HoA 2024 (BVL/NVWA, EU)Hudson et al. 2005 (Prog Neuropsychopharmacol)
1000 mg 100% of trial dose
1000 mg
Tart Cherry
A natural source of melatonin and anthocyanins with anti-inflammatory and sleep-supporting properties.
Howatson et al. 2012 (Eur J Nutr)
500 mg 104% of trial dose
480 mg
L-Theanine
The 'calm alertness' amino acid from green tea.
Williams et al. 2020
400 mg 200% of trial dose
200 mg
4.4 /5
High confidence Strong value signal
3,144 reviews across 3 platforms (8 sources)
Source diversity: 85%
LabdoorRedditTrustpilot
PraiseUsers appreciate the clean ingredient list with magnesium glycinate, L-tryptophaBrand-level: DoNotAge has 4.4/5 across 548 UK reviews, 4.4/5 DE (546), 4.4/5 CH
ComplaintsSome users note the price ($45 for 30 servings) is higher than buying the indiviBrand-level: occasional delivery errors, subscription issues, and international
Last checked: 2026-08-20

Consumer signals

Consumer signals gathered from 8 platforms.

Medium confidence
Reddit

1 thread discussed · positive sentiment

Praise

Users appreciate the clean ingredient list with magnesium glycinate, L-tryptophan, tart cherry, and L-theanine. Melatonin-free approach is valued by those who experience grogginess from melatonin.

Complaints

Some users note the price ($45 for 30 servings) is higher than buying the individual ingredients separately. Tart cherry dose (500mg) is considered modest.

Themes

Product is discussed alongside DoNotAge's broader longevity catalog. Users value the brand's published CoAs and non-profit model.

Compiled from Reddit r/longevity discussions located during research; not independently re-verified against the live page at build time.

Trustpilot

548 reviews · 4.4/5 · positive sentiment

Praise

Brand-level: DoNotAge has 4.4/5 across 548 UK reviews, 4.4/5 DE (546), 4.4/5 CH (485), 4.3/5 IT (543), 4.5/5 ES (474). Strong for delivery, customer service, packaging, and product quality. Some users specifically mention improved sleep with SureSleep.

Complaints

Brand-level: occasional delivery errors, subscription issues, and international shipping delays. Some users report no noticeable effect from sleep supplements.

Trustpilot rating is brand-level (DoNotAge), not specific to SureSleep. Verified 2026-08-07 at https://www.trustpilot.com/review/donotage.org.

Labdoor

positive sentiment

Praise

SuppCo TrustScore: 8.3/10 (Very good). Serving size verified at 4g. Key active ingredients confirmed: L-theanine 400mg, L-tryptophan 1000mg, magnesium glycinate 1000mg, magnesium citrate 1000mg, tart cherry 500mg.

Themes

Product has 30 servings at $1.70 per serving (via supp.co listing). Ingredient doses match label claims.

SuppCo (supp.co) is a supplement quality screening platform. Verified 2026-08-07.

Same brand profile on Trustpilot country sites: UK 4.4 · Germany 4.4 · Switzerland 4.4 · Italy 4.3 · Spain 4.5.

These are consumer sentiment signals. They do not measure whether the product actually works. See our evidence section for that.

What others say (unverified)

No external reviews aggregated yet for this product.

Layer 3 · Evidence vault

Evidence, claims & regulation

Published evidence, claim checks, regulatory status and what could not be verified.

Evidence

Research behind this product

The studies that established the trial dose and evidence grade for each active ingredient in this product. Click through to read the original paper.

MagnesiumMagnesium + CVD meta-analysis 2019 (544,581)
MagnesiumMagnesium + vascular function 2020 meta-analysis
MagnesiumMagnesium + cognitive health 2024 (Adv Nutr)
MagnesiumMagtein RCT 2026 (N=100)
MagnesiumMagnesium + T2D meta-analysis 2007 (286,668)
L-TryptophanHoA 2024 (BVL/NVWA, EU)
L-TryptophanHudson et al. 2005 (Prog Neuropsychopharmacol)
Tart CherryHowatson et al. 2012 (Eur J Nutr)
L-TheanineWilliams et al. 2020
Important to know
MagnesiumMagnesium oxide has ~4% absorption and mostly acts as a laxative. Always check the salt form, not just 'magnesium'.
L-TryptophanShould not be combined with SSRIs or MAOIs due to serotonin syndrome risk. Quality matters: cheap forms may contain contaminants.
Tart CherryMost products use concentrate. Sugar content in juice form can be high. Standardization to anthocyanin content varies.
L-TheanineVery safe. Suntheanine® is the branded form with the most published data.

Editorial notes

120g powder, 30 servings. Magnesium as glycinate (1000mg, 110mg elemental) + citrate (1000mg, 150mg elemental) = 260mg elemental Mg. L-tryptophan 1g, tart cherry 500mg, L-theanine 400mg. Melatonin-free. Published CoAs per batch.

Go deeper

Where this sits

Actives inside
MagnesiumL-TryptophanTart CherryL-Theanine
Category
See all in Adaptogen →
Ranking
See top 10 Magnesium supplements →
Brand
DoNotAge profile →
Add to compare Visit brand site →
Brand owners

Spot an error?

If you are the manufacturer or brand owner of SureSleep and believe any data on this page is incorrect (wrong dose, wrong ingredient, wrong price, missing certification, outdated status), you can request a correction.

We review every request, verify it against primary sources, and publish any accepted change with a dated note. Corrections from brand owners are treated the same as corrections from anyone else: verified before they move.

Request a correction →
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