Sleep Score

Composite sleep metric from wearables - combines duration, efficiency, and deep/REM ratios into one number.

What Sleep Score Measures

Sleep score is the composite metric most wearables produce nightly - Oura, Whoop, Apple Watch (via iOS 17+), Garmin, Fitbit. Each uses slightly different algorithms, but they all combine sleep duration, efficiency (time-asleep / time-in-bed), and sleep architecture (time in deep + REM stages) into a normalized 0–100 (or color-coded) score.

Individual platforms aren't comparable to each other (Oura 85 ≠ Whoop 85), but each is internally consistent. Track YOUR score over time within one platform.

Sleep score is the single most informative recovery metric - more than HRV or RHR alone - because it integrates those signals alongside duration and architecture. Consistently low scores (< your personal average minus 15%) over multiple days is a strong signal that something's disrupting recovery: protocol change, alcohol, stress, or illness.

What Affects This Biomarker

Sleep score is influenced by: sleep duration, sleep timing regularity, alcohol (reliably tanks it), late caffeine, late heavy meals, screen use before bed, room temperature, stress, and pharmacologic agents - anything elevating sympathetic tone (stimulants, cortisol) lowers it; sleep aids increase duration but often degrade architecture. Peptides: BPC-157, Epithalon, tesamorelin, HGH all commonly improve sleep scores over weeks.

In the Context of Peptide Protocols

GH peptides (tesamorelin, ipamorelin, CJC-1295, HGH) typically produce noticeably better deep sleep scores within 1–3 weeks - this is one of the most consistent subjective benefits users report. Epithalon shifts scores via melatonin axis effects. On GLP-1s, sleep scores often improve slowly as weight drops. StackAI reads sleep score trends as a proxy for protocol-induced recovery quality.

Peptides That Commonly Move Sleep Score

Conditions That Track Sleep Score

Upload any lab PDF and MyProtocolStack maps your values to Sleep Score and 40+ other biomarkers. StackAI interprets the trend in context of your protocol.