Physiology Layer

The Physiology Layer is the second layer of Sleepgenic interpretation. It looks beneath the wearable’s visible score to examine the body signals that may confirm, challenge, or complicate the score. This layer includes signals such as HRV, resting heart rate, deep sleep, REM sleep, sleep stress, total sleep, restless moments, breathing patterns, and other recovery-related metrics. These signals help show whether the body appears calm, strained, adapting, recovering, or carrying unresolved load. The Physiology Layer matters because a wearable score can move in one direction while the body’s underlying signals move in another. For example, a sleep score may decline while HRV improves, resting heart rate falls, and deep sleep increases. That pattern may suggest physiological resilience even when the score layer looks weaker. Sleepgenic uses the Physiology Layer to avoid over-reading any single score. The body’s signals are interpreted as a pattern, not as isolated numbers.