A company that's describing itself as the "Tesla of baby monitors" has produced a device that it says is the best way to watch your munchkins at night. Nanit (geddit?) stands over your baby's crib like a shower head, with a night vision camera and motion sensor aimed towards the mattress. Should it detect any noise or movement, your smartphone will get a ping, enabling you to watch the action as it unfolds. That way, parents in another room avoid the vagaries of simply listening out for signs of distress.