Heart Rate & Sleep Monitor: Lintelek fitness tracker monitors your heart rate all day. It tracks your sleep (awake sleep, deep sleep, awake time)at night. All-day Activity Tracker: The fitness tracker can track your daily steps, calorie consumed, workout distance and time.
https://www.amazon.com/Lintelek-Activity-Connected-Waterproof-Pedometer/dp/B08LH62XMP