You can’t always watch your baby while they sleep. But you can know how they’re doing with the Sense-U Baby Breathing Monitor. This compact gadget hooks to your little one’s diaper, tracking their breathing. With its built-in clasp, this baby sleep wearable stays securely on your child’s diaper while they rest. Because it uses Bluetooth Low Energy communication, this breathing monitor emits the lowest amount of radiation possible. Moreover, this technology works up to a range of 50 feet—15 meters—meaning you can be anywhere in the house and still receive alerts. Keeping tabs on your child’s abdominal temperature, this device lets you know if it can’t sense your baby’s breathing or if their temperature dips too low. It’ll also alert you of potential fevers. Better than eyes in the back of your head, this gadget provides relief.