Chapter 8 Sleep Disorders

Question 1

Insomnia

Answer 1

–One of the most common sleep disorders –Microsleeps
–Problems initiating/maintaining sleep (e.g.,
trouble falling asleep, waking during night, waking too early in the morning)
–35% of adults report daytime sleepiness
–Only diagnosed as a sleep disorder if it is not better explained by a different condition (e.g., generalized anxiety disorder

Question 2

Hypersomnolence Disorder

Answer 2

–Sleeping too much or excessive sleep
•May manifest as long nights of sleep or frequent napping
–Experience excessive sleepiness as a problem

–Often associated with medical and/or psychological conditions
–Only diagnosed if other conditions don’t adequately explain hypersomnia, which should be the primary complaint
•Associated features
–Complain of sleepiness throughout the day –Able to sleep through the night

Question 3

Narcolepsy

Answer 3

–Principal symptom: Recurrent intense need for sleep, lapses into sleep or napping
–Also accompanied by at least one:
•Cataplexy 
•Hypocretin deficiency 
•Going into REM sleep abnormally fast (

Question 4

Defining features of Narcolepsy

Answer 4

Rare Condition
Affects about .03% to .16% of the population –Equally distributed between males and females
–Onset during adolescence
–Typically improves over time