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Outcome map · Supplement

Sleep: what the evidence supports

2 graded interventions for sleep, ranked by strength of evidence.

Overall grade
Grade C
Last revised
2
graded outcomes
0
references listed
Compare with another entry

Assembled by the app from other entries in this library. It adds no evidence of its own — follow the links to the entries it draws on.

2 at grade C — 2 graded rows

What is known

Each outcome with its grade (how strong the evidence is, A to D), the size of the effect where the entry records one, and how often studies agree.

  • Magnolia BarkEvidence grade C

    Early

    Smalllow

  • CBD (Cannabidiol)Evidence grade C

    Indirect

    Smallmixed

What is uncertain

Read off the same rows as above. Nothing here is added that the entry does not itself record.

  • Thin evidence: Magnolia Bark (grade C); CBD (Cannabidiol) (grade C).

The evidence in words

The evidence map

This is the ranked evidence for sleep: every compound in the knowledge base with a graded effect, best-supported first. Grades reflect replication and effect size, not popularity or marketing.

Best-supported

No intervention here reaches grade A or B — an honest reflection of how thin the evidence for sleep still is.

Weaker or unproven

Magnolia Bark (grade C) — Early · CBD (Cannabidiol) (grade C) — Indirect

Goes with

Related reading

Entries that share this one's tags or conditions.

  • ApigeninThe chamomile flavone behind the bedtime-tea calm — mild, benign, thinly studied as an isolated supplement.Evidence grade C
  • L-Tryptophan / 5-HTPSerotonin/melatonin precursors with modest sleep-and-mood signals — and the sharpest serotonergic-drug caution on the shelf.Evidence grade C
  • MelatoninA circadian signal, not a sedative — brilliant for jet lag and shift work at low doses, mediocre as a nightly sleeping pill.Evidence grade B
  • Tart CherryA natural melatonin-and-anthocyanin source with small sleep and exercise-recovery signals.Evidence grade C

Sources

This entry lists no references of its own — it is assembled from the entries it links to, whose sources are on their pages.

Last revised . A grade is this entry's reading of the evidence, not medical advice.