Thank you for sharing your experience with the Series 10. Since the watch’s battery life affects sleep tracking reliability, daily charging can indeed disrupt continuous monitoring. You might consider checking your battery health in the Watch app to see if it's degrading. Additionally, optimizing settings (like disabling background apps that drain battery or lowering screen brightness) can sometimes help extend battery life. If the battery is significantly degraded, visiting an Apple Store or authorized service provider for a battery replacement could restore longer usage between charges and improve sleep tracking continuity.