Bailey Maryann K DDS in Wilmington, Delaware

This article translates the best scientific guidance on sleep into clear, age-based targets you can use right away: roughly 12–16 hours (with naps) for infants, 11–14 for toddlers, 10–13 for preschoolers, 9–12 for school-age children, 8–10 for teens, and at least 7 hours for adults (most do best with 7–9; many older adults feel well on 7–8). It shows how to personalize within these ranges by watching daytime alertness, mood, behavior, and performance, and offers practical steps—consistent schedules, a dark/cool/quiet room, and smart light, screen, and caffeine habits. It also highlights red flags that warrant medical advice, such as loud snoring or breathing pauses, chronic insomnia, restless legs, or persistent daytime sleepiness. Patients and caregivers can use this guide to set age-appropriate routines that support growth, learning, heart and metabolic health, and overall well-being.