What you take · The Ledger

What you take to sleep — and what the evidence actually says.

The other half of the night. The Atlas maps the chemistry you're exposed to around your bed; the Ledger reads the chemistry you choose — melatonin, magnesium, the herbs and aminos on the sleep shelf. Same method: every claim read against the primary literature and tagged by evidence tier. No affiliate links. No supplement marketing. Just what's actually known, and how firmly.

The same night, two directions

A companion to the Atlas — not a pivot

Embr's mission is the truth about the chemistry of your sleep: everything that enters or surrounds your body during the hours you can't defend yourself, separated from the fear and the marketing. That was always two halves. We built the exposure half first. This is the other one.

Around you · imposed

The Bedroom Chemistry Atlas

Chemistry you don't choose — off-gassing, dust, flame retardants, combustion residue. The verb is reduce. Open the Atlas →

What you take · chosen

The Sleep Supplement Ledger

Chemistry you choose and swallow — melatonin, magnesium, botanicals, aminos. The verb is evaluate before you take. You're here.

How to read the Ledger

The evidence tier is the whole point

Every claim carries one tag, so you always know how strong the ground under it is. The mix looks different here than in the Atlas: the supplement shelf runs on studies and marketing, not regulators — so Regulatory nearly vanishes, and Industry and Inferred carry more weight. Saying that plainly, per claim, is the service.

Peer-reviewedPublished trial or meta-analysis. The citation — DOI, PMID — is provided. The strongest ground.
RegulatoryWhat a health authority actually says — often what it explicitly does not claim about a supplement. Rare here, and telling.
IndustryTrade bodies, brand whitepapers, popular write-ups. Read with care — much of the supplement "evidence" lives here.
InferredA defensible reading of the mechanism or the underlying data. We show the reasoning so it can be challenged.
SpeculationAn open question the literature hasn't settled — flagged so it can never be mistaken for a finding.
The shelf

There are a lot of these. That's the problem.

The sleep-supplement aisle is enormous and mostly unrefereed — which is exactly why an evidence-tiered map of it is worth building. Here's the shelf we're working through, grouped the way the Atlas groups compound families. Entries publish one at a time, most-searched first; nothing is listed as live until its evidence is in hand.

Neurohormone
MelatoninNeurohormone · N-acetyl-5-methoxytryptamineFirst entry — in progress
Minerals
Magnesium glycinateMineral · chelatedPlanned
Magnesium L-threonateMineral · chelatedPlanned
ZincMineralPlanned
Amino acids & derivatives
L-theanineAmino acidPlanned
GlycineAmino acidPlanned
L-tryptophanAmino acidPlanned
5-HTPAmino acid · serotonin precursorPlanned
GABAAmino acid · neurotransmitterPlanned
Botanicals
Valerian rootBotanicalPlanned
AshwagandhaBotanical · adaptogenPlanned
Chamomile / apigeninBotanical · flavonoidPlanned
Lavender (silexan)Botanical · essential oilPlanned
PassionflowerBotanicalPlanned
Lemon balmBotanicalPlanned
Magnolia barkBotanicalPlanned
HopsBotanicalPlanned
Other
CBDCannabinoidPlanned
Tart cherryFood-derived · melatonin sourcePlanned

This roster is the build queue, not a set of live pages — so there are no dead links here. Each entry goes live only when its literature has been read and tiered.

Stay current

Get each Ledger entry as it's verified

New supplement write-ups and Atlas entries, sent when the evidence is in hand — never on a marketer's schedule. No affiliate links, ever.