Tempdrop is a wearable smart device that helps women track their fertility.

Before going to sleep, users place the sensor under their arm, where it continuously monitors sleep quality and body temperature.Tempdrop monitors users' sleep for disturbances or interruptions and also learns their individual temperature patterns.

The collected data is securely stored in the cloud, and the device automatically integrates its readings with users' preferred fertility app.Tempdrop uses two temperature sensors and an acceleration sensor that measures three-axis acceleration to acquire information on ambient and body temperature.Tempdrop combines two algorithms, a learning algorithm and a patent-pending active temperature-noise cancellation filtering algorithm, to learn personal sleeping temperature patterns and filter out disturbances to temperature readings like blankets or sleeping positions.