Sleep plays a critical role in your physical and mental health. Understanding the five stages of sleep—including both REM (Rapid Eye Movement) and non-REM sleep—can help improve your sleep quality…

Age groupAge rangeRecommendedNewborn0–3 months14–17 hoursInfant4–12 months12–16 hoursToddler1–2 years11–14 hoursPreschool3–5 years10–13 hoursSchool Age6–12 years9–12 hoursTeen13–18 years8–10 hoursAdult18–60 years7 or more hoursAdult61–64 years7–9 hoursAdult65 years and older7–8 hours