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SureSleep

Sleep / Recovery · Powder · 30 portioner#1 / 2 in Sleep / Recovery
7.5
Overall score · out of 10
7.5
Overall score · out of 10
Dose vs. studies7.9
Transparency8.0
Value7.7
Community6.0
Formulation5.0
Tier 3
Ingredient RCT (matching dose)
The ingredient was tested in an RCT at the same dose this product sells.
Redaktionellt score, paid $0 No affiliate link Tested by independent lab Public analysintyg Sample received: No
How we scored this product Show the full breakdown
Composite How this 7.5 is built. 0.55 × 7.9 + 0.20 × 8.0 + 0.10 × 7.7 + 0.10 × 6.0 + 0.05 × 5.0 = 7.5 out of 10. Säkerhet caps applied after. 7.5
7.5 composite
Dose vs. studies55%7.9
Transparency20%8.0
Value10%7.7
Community10%6.0
Formulation5%5.0

Bevisning 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. Säkerhet 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 →

Question 1

Does the molecule work?

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

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

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

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

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

1 landmark RCT · US: GRAS · EU: Permitted as food

The 'calm alertness' amino acid from green tea.

1 landmark RCT · US: GRAS · EU: Food supplement
Question 2

Is this bottle good?

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

Dose vs research
87% av studiedosen
Below the full trial dose
Cost at trial dose
$1.73/day at trial dose
What one effective daily dose actually costs
Transparency
8.0/10 · Public analysintyg (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?

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

Säkerhet signals
Drug interaction risk — magnesium
Can reduce absorption/efficacy of oral bisphosphonates, tetracyclines, and quinolone antibiotics.
Läs mer
Buyer complaints
Reddit: Some users note the price ($45 for 30 portioner) 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.
Redaktionellt verdict

Quick verdict

7.5 / 10
Best for
Public analysintyg
Avoid if
Only 87% av studiedosen
Full-dose status
87% av studiedosen
Pris/month
$45
COA status
Public
Biggest caveat
Dose is 87% of the trial dose.
Nearest alternatives

The numbers

Pris
$45
per bottle · 30 portioner
Dose vs. research
Överensstämmer med studier 87%
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

Pris
$45
Verified n/a
Dose
87% av studiedosen
Verified n/a
COA status
Public
Verified n/a
Bevisning grade
ABBB
Per-ingredient breakdown
AMagnesium
BL-Tryptophan
BTart Cherry
BL-Theanine
Verified n/a

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

What's inside

Ingredient
Dose in this product
Trial dose
Bevisning
260 mg 87% av studiedosen
300 mg
L-Tryptophan
An essential amino acid that serves as a precursor to serotonin and melatonin.
1000 mg 100% av studiedosen
1000 mg
Tart Cherry
A natural source of melatonin and anthocyanins with anti-inflammatory and sleep-supporting properties.
500 mg 104% av studiedosen
480 mg
L-Theanine
The 'calm alertness' amino acid from green tea.
400 mg 200% av studiedosen
200 mg
4.4 /5
High confidence Strong value signal
548 reviews across 3 platforms (3 sources)
Source diversity: 69%
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 portioner) is higher than buying the indiviBrand-level: occasional delivery errors, subscription issues, and international
Last checked: 2026-08-07

Consumer signals

Consumer signals gathered from 3 platforms.

Medium confidence

1 threads discussed · positive sentiment

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

548 reviews · 4.4/5 · positive sentiment

PraiseBrand-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.
ComplaintsBrand-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.

positive sentiment

PraiseSuppCo TrustScore: 8.3/10 (Very good). Portionstorlek verified at 4g. Key active ingredients confirmed: L-theanine 400mg, L-tryptophan 1000mg, magnesium glycinate 1000mg, magnesium citrate 1000mg, tart cherry 500mg.
ThemesProduct has 30 portioner at $1.70 per portion (via supp.co listing). Ingredient doses match label claims.

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

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.

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 produkter 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.

Redaktionellt notes

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

In plain language

Why this scored this way

This DoNotAge SureSleep scores 7.5, making it a strong scorer. It delivers 260mg of Magnesium (87% of the 300mg trial dose) with grade A evidence (strong human trial data). At $1.73/day it's among the more expensive options in Sleep / Recovery.

What drives the score up

  • Dose-evidence score of 7.9 shows decent alignment with trial doses.
  • Tested by independent lab (transparency 8.0).
  • Magnesium has grade A evidence and is dosed at 87% of the trial dose.
  • L-Theanine is dosed at the full research level with grade B evidence (promising human data, not yet comprehensive).
  • L-Theanine is also dosed at the full research level.

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.
  • Limited consumer feedback (community score: 6.0).
  • 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 produkter 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).
Go deeper

Where this sits

Varumärke 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 primär sources, and publish any change with a dated note in the version history above. Corrections from brand owners are treated the same as corrections from anyone else: verified before they move.

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