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  2. Infant sleep - Wikipedia

    en.wikipedia.org/wiki/Infant_sleep

    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]

  3. Rhythmic movement disorder - Wikipedia

    en.wikipedia.org/wiki/Rhythmic_movement_disorder

    The disorder often leads to bodily injury from unwanted movements. Because of these incessant muscle contractions, patients' sleep patterns are often disrupted. It differs from restless legs syndrome in that RMD involves involuntary muscle contractions before and during sleep while restless legs syndrome is the urge to move before sleep. RMD ...

  4. Periodic limb movement disorder - Wikipedia

    en.wikipedia.org/wiki/Periodic_limb_movement...

    Periodic limb movement disorder (PLMD) is a sleep disorder where the patient moves limbs involuntarily and periodically during sleep, and has symptoms or problems related to the movement. PLMD should not be confused with restless legs syndrome (RLS), which is characterized by a voluntary response to an urge to move legs due to discomfort. PLMD ...

  5. Bobble-head doll syndrome - Wikipedia

    en.wikipedia.org/wiki/Bobble-head_doll_syndrome

    The disappearance of the head movements while asleep implies that their origin may lie within the extrapyramidal system which is a part of the motor system that controls coordination of movement. The tracts associated with the extrapyramidal system are controlled by various structures of the central nervous system , such as the cerebellum and ...

  6. Waking at the same time each night reveals details about your ...

    www.aol.com/article/2016/07/14/waking-at-the...

    Early stages of sleep sees our endocrine rebalance itself, so if you're waking up here, something is being blocked. If you have trouble sleeping early on in the night, it may be that you're having ...

  7. Circadian rhythm sleep disorder - Wikipedia

    en.wikipedia.org/wiki/Circadian_rhythm_sleep...

    A circadian rhythm is an entrainable, endogenous, biological activity that has a period of roughly twenty-four hours. This internal time-keeping mechanism is centralized in the suprachiasmatic nucleus (SCN) of humans, and allows for the internal physiological mechanisms underlying sleep and alertness to become synchronized to external environmental cues, like the light-dark cycle. [4]

  8. Sopite syndrome - Wikipedia

    en.wikipedia.org/wiki/Sopite_syndrome

    The sopite syndrome (/ s oʊ ˈ p aɪ t /; from Latin sopire 'to put to sleep') [1] is a neurological disorder that relates symptoms of fatigue, drowsiness, and mood changes to prolonged periods of motion. [2] The sopite syndrome has been attributed to motion-induced drowsiness such as that experienced by a baby when rocked. [1]

  9. Moro reflex - Wikipedia

    en.wikipedia.org/wiki/Moro_reflex

    Other methods have been used since then, including rapidly lowering the infant (while supported) to a sudden stop and pinching the skin of the abdomen. Today, the most common method is the head drop, where the infant is supported in both hands and tilted suddenly so the head is a few centimeters lower than the level of the body.