Halcyon Sleep Labs

Verified

Sleep-architecture supplements and at-home polysomnography.

4.7 (226 reviews) Edinburgh, UKFounded 2018Recovery

Trust 89

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Founded

2018

Team size

59+ people

Ships to

Worldwide

Returns

35-day window

Business verifiedID-checked ownerAccredited lab partnerAddress verifiedShips from US

About Halcyon Sleep Labs

Combines clinically-dosed sleep formulations with at-home EEG headbands for objective tracking.

Trust score breakdown

Five weighted signals make up the 89 overall trust score.

Transparency91

Public sourcing, ownership and policy disclosures.

Third-party testing82

Independent COAs uploaded for recent batches.

Community trust90

Aggregate of verified reviews and recommendations.

Responsiveness77

Median support reply time across the last 90 days.

Consistency83

Stability of pricing, quality, and shipping over time.

Featured products & services

Cold Plunge Pro

Insulated home plunge with 39°F chiller and ozone sanitation.

Hardware

Red Light Panel XL

Independently irradiance-tested 660/850nm therapy panel.

Bestseller

Sleep Architecture Stack

Clinically-dosed glycine, magnesium and apigenin protocol.

Supplement

Categories:Cold therapyRed lightSleep stacksHardware

Third-party testing

Independent Certificates of Analysis from accredited labs. Each report covers identity, purity, and contaminant screening for the listed batch.

ISO 17025 GMP audited Independently sampled

Glycine USP — Lot H152026-03-10

Review summary

4.7

226 reviews

5★

59%

4★

31%

3★

2★

1★

Customers mention:Solid build qualityNoticeable resultsWell packagedQuiet operation

Transparency

Public disclosures Halcyon Sleep Labs has shared with the MeekDeals community.

Ownership disclosed
Founder and parent entity listed on the vendor profile.
Manufacturing location
Operations based in Edinburgh, UK.
Supply chain summary
Tier-1 suppliers and country of origin published.
Independent COAs
1 batch report on file.
Refund & return policy
Public policy with stated timelines and conditions.
Adverse event reporting
Clear contact channel for safety reports.

Vendor history

Key milestones since Halcyon Sleep Labs launched.

2018
Company founded
Halcyon Sleep Labs launched with a focus on transparency and high-quality sourcing.
2019
First independent lab partnership
Signed an exclusive testing agreement with an ISO 17025 accredited lab for batch-level COAs.
2020
Business verification completed
Submitted EIN, founder ID, and address documents to the MeekDeals verification team.
2026
Public COA program expanded
1 batch report published to the MeekDeals profile.
Today
Active on MeekDeals
Listed in the directory, accepting community reviews, and responding to support requests.

How the trust score works

The MeekDeals trust score is a weighted average from 0 to 100 across five independent signals. Higher weights go to inputs that are hardest to fake — third-party lab reports and public transparency disclosures.

Transparency

25%

Third-party testing

25%

Community trust

20%

Responsiveness

15%

Consistency

15%

Read the full methodology