Five Apple Watch sleep settings doctors recommend for accurate tracking

Apple Watch sleep tracking accuracy can be significantly improved by enabling specific settings, according to sleep doctors. Key settings like Sleep Focus and Wrist Detection are crucial for the watch to correctly identify sleep periods and track vital metrics. Other features like Wrist Temperature and Sleep Apnea notifications offer deeper health insights. While consumer wearables are improving, doctors emphasize that Apple Watch data provides approximations, not the precise measurements of a clinical sleep study.