"Is my baby sleeping too much?" "Why won't my baby sleep?" These two opposite questions are probably the most common concerns I hear from new parents, often from the same parent in the same week. Newborn sleep can feel completely unpredictable, but there actually are patterns hiding in the chaos. Understanding what's biologically normal for your baby's age can help you set realistic expectations and recognize when something might actually need attention. Let's break down what to expect week by week.