Skip to main content

Sleep Stage Transition Efficiency

Meaning

Sleep Stage Transition Efficiency is a quantitative metric that measures the smoothness, speed, and integrity of the movement between the various non-REM (N1, N2, N3) and REM sleep stages throughout the nocturnal period. High efficiency indicates minimal arousals or fragmented shifts, signifying a robust and uninterrupted progression through the sleep cycle architecture. Clinically, poor efficiency often correlates with non-restorative sleep, as it suggests underlying instability in the neural and hormonal systems governing sleep state maintenance.