Sleep physiology and sleep disorders in childhood

Hanan M El Shakankiry1

  • 1King Fahd University Hospital, Al Dammam University, Al Khobar, Kingdom of Saudi Arabia.

Insights

Pediatric sleep is crucial for child development, not passive. This review covers sleep disorders in children, affecting one-third and impacting cognitive functions.

Area of Science:

  • Pediatric sleep science
  • Developmental neuroscience
  • Child psychology

Background:

  • Sleep was historically viewed as passive, but is now recognized as vital for brain activity and higher cortical functions.
  • Sleep significantly impacts all facets of child development, especially cognitive abilities.
  • Sleep concerns are a major parental worry, ranking fifth among concerns.

Purpose of the Study:

  • To review the fundamental physiology of sleep in children.
  • To detail the impact and classification of pediatric sleep disorders.
  • To outline current management strategies for sleep disorders in the pediatric population.

Main Methods:

  • Literature review of sleep physiology.
  • Analysis of sleep disorder prevalence in children.
  • Examination of sleep disorder impact on pediatric populations.
  • Review of management approaches for pediatric sleep disorders.

Main Results:

  • Approximately one-third of all children experience sleep disorders.
  • Prevalence of sleep disorders is higher in specific pediatric groups, including those with special needs, medical/psychiatric diagnoses, and autism spectrum disorders.
  • Sleep disorders negatively affect higher cognitive functions in children.

Conclusions:

  • Pediatric sleep is an active, critical process for development.
  • Sleep disorders are common in children and require targeted management.
  • Understanding sleep physiology and disorders is essential for pediatric care.

Related Concept Videos

Sleep-Wake Cycles01:24

Sleep-Wake Cycles

Sleep is an essential physiological process vital to maintaining overall well-being. The reticular activating system (RAS), a network of neurons in the brainstem, regulates wakefulness and sleep. While it may seem passive, sleep consists of distinct cycles, each with its unique characteristics and functions. Two key sleep phases are non-rapid eye movement (NREM) and  rapid eye movement (REM).
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
Nightmares and Night Terrors01:18

Nightmares and Night Terrors

Nightmares and night terrors represent two distinct types of sleep disturbances that differ in timing, characteristics, and the sleeper's recall of the event. Nightmares are vivid, disturbing dreams that usually awaken the sleeper from REM sleep, a stage of sleep where brain activity is high, and dreams are most frequent. Upon awakening, individuals often have detailed recollections of their nightmares, which can include themes of threats to survival, security, or self-esteem.
Nightmares often...
Narcolepsy01:07

Narcolepsy

Narcolepsy is a chronic sleep disorder characterized by pervasive, uncontrolled sleepiness and other sleep disturbances. One of its hallmark symptoms is an abrupt transition to REM sleep upon falling asleep, which causes symptoms typically associated with this phase to occur unexpectedly during wakefulness. These include the following symptoms, which typically last from a minute or two to half an hour.
Understanding Sleep01:11

Understanding Sleep

Sleep, an essential biological state, involves significant reductions in physical activity, sensory awareness, and interaction with the environment. This complex physiological process is primarily regulated by specific brain regions, notably the hypothalamus and pons, which govern the sleep-wake cycle or circadian rhythm.
The circadian rhythm, a nearly 24-hour cycle, is deeply influenced by environmental light cues. Light exposure directly affects the hypothalamus, which in turn regulates...
REM Sleep Behavior Disorder01:15

REM Sleep Behavior Disorder

REM Sleep Behavior Disorder (RBD) is a sleep disorder characterized by the absence of muscle paralysis that normally occurs during the REM phase of sleep. This absence allows individuals to physically act out their dreams, which are often vivid and disturbing. Common behaviors exhibited during episodes include kicking, punching, and yelling. These actions can be dangerous, potentially leading to injuries for the person with RBD or their bed partner.
RBD is significantly associated with...
Sleepwalking and Sleep Talking01:17

Sleepwalking and Sleep Talking

Somnambulism, commonly known as sleepwalking, involves individuals engaging in activities ranging from simple walking to more complex behaviors such as driving. Sleepwalking typically occurs during the slow-wave sleep stages 3 and 4 early in the night when the person is not dreaming, contradicting the myth that sleepwalkers are acting out their dreams.
Factors that increase the likelihood of sleepwalking include sleep deprivation and alcohol consumption. Contrary to common beliefs, it is safe...