delayed sleep phase syndrome

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delayed sleep phase syndrome

A sleep disorder characterised by the inability to fall asleep for several hours after going to bed. Often related to abuse of alcohol or sleeping pills, the condition may respond to bright light therapy administered several hours before bedtime.
References in periodicals archive ?
The company is also assessing additional clinical opportunities for Hetlioz in treating delayed sleep phase disorder, and for sleep disorders in patients with neurodevelopmental disorders.
There's genetics too at work, with entire families suffering from delayed sleep phase disorder, where rhythms are longer than 24 hours so they end up with longer cycles of sleepiness and alertness that don't conform with the rest of society.
The patients, who met criteria for delayed sleep phase disorder, about 40 percent of the sample, went to bed around 3 a.m.
Smits, "The use of exogenous melatonin in delayed sleep phase disorder: a meta-analysis," Sleep, vol.
Magee et al., "Prevalence of circadian misalignment and its association with depressive symptoms in delayed sleep phase disorder," Sleep, vol.
Circadian rhythm sleep disorders: part II, advanced sleep phase disorder, delayed sleep phase disorder, free-running disorder, and irregular sleep-wake rhythm.
A randomized controlled trial of cognitive-behavior therapy plus bright light therapy for adolescent delayed sleep phase disorder. Sleep, 34(12), 1671-1680.
Delayed sleep phase disorder after traumatic brain injuryJ Am Acad Child Adolesc Psychiatry.
International Classification of Sleep Disorders (American Academy of Sleep Medicine, 2005) Sleep disorders Clinical examples Insomnias--primary sleep disorders that cause: * Difficulty getting off to sleep Settling problems * Difficulty maintaining sleep Night waking * Non-restorative sleep Early waking Hypersomnias Narcolepsy, Kleine-Levin syndrome Parasomnias Night terrors, sleepwalking Circadian rhythm disorders Delayed sleep phase disorder, advanced sleep phase disorder Sleep-related movement disorders Restless legs syndrome, periodic limb movement disorder, rhythmic movement disorder Sleep-related breathing disorders Obstructive sleep apnoea
Delayed sleep phase disorder (DSPD) is characterized by late sleeping and waking, on most nights, usually with a delay of more than two hours in relation to conventional or socially acceptable times.
Delayed sleep phase disorder (DSPD)--characterized by a pathological "night owl" circadian preference--is seen most commonly in adolescents and is associated with psychiatric morbidity, psychosocial impairment, and poor academic performance.
Several primary sleep disorders have daytime sleepiness as a symptom, including sleep deprivation, delayed sleep phase disorder, advanced sleep phase disorder, sleep disordered breathing, periodic limb movements, idiopathic hypersomnia, and Kleine-Levin syndrome.