A state during the transition to or from sleep, where the ability to move or talk is temporarily lost. A common symptom of narcolepsy. May be accompanied with hallucinations. Only lasts a few minutes, and may be resultant from the pontine center continuing to impose paralysis after the person wakes from an REM episode. 

University of Rochester

This list includes disorders or conditions that are related to states or features of sleeping, waking, or the processes that occur in between, but are not currently directly or officially included in the DSM. These disorders include:
-	Sleep Enuresis (Bedwetting)
-	Sleep Paralysis
-	Sleep-State Misperception
-	Sudden Infant Death Syndrome (SIDS)


List of Other Recognized Sleep-Wake Disorders

Breedlove, S. & Watson, N. (2017). Behavioral neuroscience, eighth edition. Oxford University Press.

Behavioral Neuroscience 8th Edition

Bed-wetting. Associated with SWS (stage 3). Sometimes, a nasal spray of vasopressin (antidiuretic hormone) prior to bed is prescribed to reduce urine production. 

Sleep Enuresis

Sleep Paralysis

Usually refers to someone’s false perception that they have not been asleep, when in truth, they have. More common at the start of a sleep episode. This misperception could be due to an over-expression of alpha and beta waves during sleep, which resemble wakeful patterns. 

Sleep-State Misperception

Also called crib death, it is the sudden and unexpected death of an otherwise healthy baby whose breathing has ceased, typically during sleep. Could be from sleep apnea due to immature respiration pace systems. Autopsies of victims show brainstem serotonin system abnormalities, which could result in irregularities in respiratory regulation. To protect against SIDS, parents are urged to put their babies to rest on their backs to keep the airway open and unobstructed. 

Sudden Infant Death Syndrome

Sudden Infant Death Syndrome (SIDS) is a condition where an infant dies unexpectedly during sleep after ceasing to breathe. The highest risk is observed in infants under one year old, with a higher incidence in boys. Several risk factors are associated with SIDS, such as premature birth, exposure to smoke in the household, and hyperthermia (overheating). Additionally, studies suggest that infants who succumb to SIDS may have underlying differences in brain structure and function.

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