In adolescents and young adults, delayed sleep-wake phase disorder (DSWPD) may be associated with attention-deficit/hyperactivity disorder (ADHD) and restless legs ...

Delayed sleep phase disorder (DSPD), more often known as delayed sleep phase syndrome and also as delayed sleep–wake phase disorder, is a chronic dysregulation of a person's circadian rhythm ...

Melatonin, an endogenously produced indoleamine, plays a central role in synchronising the sleep–wake cycle in children. Its secretion by the pineal gland under dim-light conditions facilitates the ...

Circadian rhythm sleep–wake disorders encompass a range of conditions in which the timing of sleep is misaligned with the internal circadian pacemaker or external environment, leading to difficulties ...