Best forOvernight temperature when a waking thermometer is unrealistic.
- Who it's for
- People charting fertility, including postpartum, who will buy a wearable sensor.
Tempdrop says the sensor measures basal body temperature while you sleep. A paid Premium tier adds fertile-window indicators and chart interpretation. The company says it can be used postpartum because it tries to filter broken sleep. Temperature-only methods can miss ovulation. Many charting methods also record cervical fluid.
Pros
- The sensor records temperature during sleep. You do not have to wake at the same minute.
- The company says it can be used postpartum because it tries to filter broken sleep.
Cons
- You buy the sensor. Automated chart notes sit in an optional Premium subscription.
- Temperature-only methods can miss ovulation. Many methods also record cervical fluid.