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During the first year of life, infants spend most of their time sleeping. An infant can go through several periods of change in sleep patterns. These can start at 1 week, occurring weekly or fortnightly, until 8 years of age due to innate and external factors that contribute to sleep. [3]
In the first week of life, infants will sleep during both the day and night and will wake to feed. Sleep cycle duration is usually short, from 2–4 hours. [7] Over the first two weeks, infants average 16–18 hours of sleep daily. Circadian rhythm has not yet been established and infants sleep during the night and day equally. [3]
Tummy time is a colloquialism for placing infants in the prone position while awake and supervised to encourage development of the neck and trunk muscles and prevent skull deformations. [1] [2] [3] In 1992, the American Academy of Pediatrics recommended babies sleep on their backs to prevent sudden infant death syndrome (SIDS).
Bedtime (also called putting to bed or tucking in) is a ritual part of parenting to help children feel more secure [1] and become accustomed to a more rigid schedule of sleep than they might prefer. The ritual of bedtime is aimed at facilitating the transition from wakefulness to sleep. [ 2 ]
Polyphasic sleep is the term used to describe any sleep pattern that includes three or more periods of shuteye in a 24-hour period instead of the more traditional large snooze at night.
A person's chronotype is the propensity for the individual to sleep at a particular time during a 24-hour period. Eveningness (delayed sleep period; most active and alert in the evening) and morningness (advanced sleep period; most active and alert in the morning) are the two extremes with most individuals having some flexibility in the timing ...
The spider monkey, believed to be 1 month old, has since been taken to the Oakland Zoo, according to authorities Baby Spider Monkey Wearing a Onesie Found During California Traffic Stop That Led ...
The debt ceiling returned on January 2, but Congress has several months to address it before the nation could default on its obligations. (Jemal Countess/Getty Images)