Table 1: Sleep Disturbances - Classifications, Sub-Types, Characteristics.
Classification | Sub-Types | Characteristics |
Insomnias |
-Acute -Chronic -Comorbid |
-Difficulty initiating & maintaining sleep -Chronic: exists > 3 months & > 3 times/week -Comorbid: associated with affective disorders, stimulants, alcohol use |
Sleep Related Breathing Disorders (SRBD) |
-OSA (chronic vs. short term) -Central sleep apnea syndromes -Sleep-related hypoventilation -Sleep related hypoxemia |
-Snoring, labored/breathing -Daytime consequences: Sleep deprivation -Hypercapnia |
Central Disorders of Hypersomnolence |
-Narcolepsy -Kleine-Levin syndrome -Hypersomnia due to medical or psychiatric disorder -Idiopathic |
-Excessive daytime sleepiness disorders which are |
Circadian Rhythm Sleep-wake Disorders |
-Delayed Sleep Phase Disorder (DSPD) -Night Eating Syndrome (NES) |
-Internal (endogenous) abnormalities of the body’s circadian rhythm (sleep/wake cycle) -Entrained to 24 hours by external factors, specifically light -Short-term circadian rhythm disturbance includes jet lag -Chronic circadian rhythm disturbance exhibited in night-shift workers |
Parasomnias: Non-Rapid Eye Movement Types (NREM) Rapid Eye Movement Types (REM) |
NREM: -Confusional arousals, sleepwalking, sleep terrors, and sleep-related eating disorder (SRED) REM: REM sleep behavior disorder and nightmare disorder Other parasomnias include: sleep enuresis, exploding head syndrome, sleep-related hallucinations |
-Disorders associate with sleep stages and partial arousal |
Sleep Related Movement Disorders |
-Restless leg syndrome -Periodic movement disorder -Myoclonus, bruxism, and sleep-related movements due to medical condition or medicine |
-Simple, repetitive movements during sleep -Associated with dysesthesias or cramps |