Pomsky Sapphie helping her owners by detecting when the baby's diaper needs changing (left) and pressing a button to alert them (right). @sapphie_the_pomsky/TikTok Adding a new level of ...

Scientists from Penn State University have created a “smart diaper” — a nappy with a built-in sensor that will send an alert to a phone once it gets wet.

Best baby changing mats to shop now In a hurry? Here are the best nappy changing mats at a glance. Keep scrolling for the full list.