You can sleep seven hours, follow every sleep hygiene rule, and still wake up feeling unrefreshed because total sleep time is only one piece of the picture.
What matters is sleep architecture - how much deep sleep you reach, how REM cycles distribute, and whether breathing remains stable enough for your brain and body to do restorative work overnight.
The Precision Sleep Profile™ uses clinical-grade technology that measures physiological signals a consumer watch or ring cannot capture, bringing more meaningful clarity to the question of why sleep is not restoring you.