Rankings / Essentials — Lifestyle

Sleep

Essentials · Lifestyle

Tier S

Reviewed by Read Off Label · Last reviewed · How we grade

gh-axis
9.7 / 10
Tier S
Ev 10 Bn 8 Sf 10

Bottom line

Read Off Label grades Sleep as S (9.7/10) based on very strong evidence, high benefit magnitude, and a very low-risk safety profile.

U-shaped mortality curve — both <6hr and >9hr associated with increased all-cause mortality.

Typical use: 7-9 hours/night; consistent schedule; dark, cool room — N/A.

What this is

U-shaped mortality curve — both <6hr and >9hr associated with increased all-cause mortality. Arguably the single highest-ROI intervention on the entire list.

Mechanism

Glymphatic waste clearance; memory consolidation; hormonal regulation (GH, cortisol, leptin/ghrelin); immune function

Dose & route

7-9 hours/night; consistent schedule; dark, cool room

Citations

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Common questions

Does Sleep work?
Read Off Label rates the evidence for Sleep as Very Strong and the benefit magnitude as high, producing an overall grade of S (9.7/10). U-shaped mortality curve — both <6hr and >9hr associated with increased all-cause mortality.
Is Sleep safe?
Sleep has a very low risk profile in published human data. Legal status: N/A (free). This is not medical advice — see the disclaimer.
What is the typical dose for Sleep?
7-9 hours/night; consistent schedule; dark, cool room
How does Sleep work?
Glymphatic waste clearance; memory consolidation; hormonal regulation (GH, cortisol, leptin/ghrelin); immune function

This is an independent synthesis of published research by a non-clinician. Scores are opinions supported by citations, not prescriptions. See the full disclaimer and methodology for how this score was produced and what it does and doesn't mean.