A baby that won’t sleep can break a whole household. An adult who “sleeps” but still feels wrecked can lose years to brain fog. We get into both, starting with a Duke physician who lives at the intersection of sleep science and real-life chaos: Sue J. Consagra, MD, child neurologist and pediatric sleep specialist, also known online as That Sleep Doc. We talk through the Lullaby smart crib mattress, a baby sleep technology designed to detect crying and movement, then respond with vibration an...