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The amount of sleep you need every night depends on your age. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290 ...
Hours of sleep recommended for each age group [93] Age and condition Sleep needs Newborns (0–3 months) 14 to 17 hours Infants (4–11 months) 12 to 15 hours Toddlers (1–2 years) 11 to 14 hours Preschoolers (3–4 years) 10 to 13 hours School-age children (5–12 years) 9 to 11 hours Teenagers (13–17 years) 8 to 10 hours
Infant sleep is an act of sleeping by an infant or a newborn. It differs significantly from sleep during adulthood. [ 1 ] [ 2 ] [ 3 ] Unlike in adults, sleep early in infancy initially does not follow a circadian rhythm .
The sleep cycle is an oscillation between the slow-wave and REM (paradoxical) phases of sleep. It is sometimes called the ultradian sleep cycle, sleep–dream cycle, or REM-NREM cycle, to distinguish it from the circadian alternation between sleep and wakefulness. In humans, this cycle takes 70 to 110 minutes (90 ± 20 minutes). [1]
A newborn baby's sleep cycle lasts just 30 minutes.
This can help babies sleep through an array of disturbances, from teething pain to passing planes or noise from older siblings. Even older kids and adults often sleep better with low, rumbly sound.
They are present in the sleep of 5-month-old infants, and develop with age. Between 3 and 5 years of age a faster negative component appears and continues to increase until adolescence. Another change occurs in adults: before 30 years of age their frequency and amplitude are higher than in older people particularly those over 50 years of age. [10]
New research exposes common myths about teen sleep and explains why most teenagers don't hit the recommended 8 to 10 hours of sleep per night.