Every parent knows the feeling. You tiptoe out of the nursery, finally get your baby to sleep, and then spend the next hour wondering: Are they too warm? Too cold? Comfortable? For generations, the only way to know was to go back in and check—risking waking a sleeping baby in the process. Then came wearable monitors promising continuous insights, but they introduced new worries: skin irritation, straps that slip off, socks that get kicked across the crib at 2 a.m. Contact-free baby monitors...

Parenting is a swirl of joy, fatigue, and a thousand tiny decisions. When it comes to watching over your little one, you want more than...

Bringing a new baby home is a whirlwind of joy, questions, and a fair share of worries. The good news? Keeping track of your little one’s...