Sleep Score

The Sleep Score is Garmin's headline rating for the previous night, expressed as a number from 0 to 100. It does not measure sleep quality directly. It is a composite of three sub-scores — Quality Score, Recovery Score, and Duration Score — each measuring a distinct dimension of the night's sleep, then combined into a single global rating. A score of 65 alone tells you almost nothing. The same 65 can come from a long but fragmented night, a short but architecturally clean night, or a moderate night with depressed HRV. The information is in the sub-score breakdown and the longitudinal trajectory, not in the headline number. Sleepgenic treats the Sleep Score as a starting point for interpretation, never as a verdict. Reading the score against the four sub-scores, the week's training stimulus, and the rolling baseline is where the actual signal lives.