Sleep Physiology
This brain structure produces melatonin, a hormone that helps regulate sleep.
What is the pineal gland?
This is the stage where a person is “half awake and half asleep,” easily awakened.
What is N1?
This disorder involves difficulty falling or staying asleep.
What is insomnia?
Drinking this stimulant 4–6 hours before bed can impact sleep.
What is caffeine?
Exercising too close to bedtime interferes with sleep; ideally, exercise should stop at least this many hours before bed.
What is 3 hours?
This nucleus inside the hypothalamus regulates circadian rhythms.
What is the suprachiasmatic nucleus?
Most of our sleep occurs in this stage.
What is N2?
This condition involves excessive daytime sleepiness despite adequate nighttime sleep.
What is hypersomnia?
This emotional state—often caused by personal worries—makes it harder to fall asleep and contributes to frequent nighttime awakenings.
What is emotional stress?
Keeping naps short means limiting them to this amount of time.
What is less than 30 minutes?
N3 sleep is associated with the release of this hormone that helps repair tissues.
What is human growth hormone?
Delta waves are primarily seen in this sleep stage.
What is N3?
This type of sleep apnea is caused by a communication problem between the brain and the respiratory system.
What is central sleep apnea?
Clients taking these respiratory depressant medications are at increased risk for complications if they also have obstructive sleep apnea.
What are opioids?
This nonpharmacologic method involves tracking sleep patterns to identify problems.
What is a sleep diary?
This part of the brain processes sensory information and helps regulate sleep.
What is the thalamus?
Dreams occur in this sleep phase.
What is REM sleep?
This disorder includes sudden periods of sleep and may involve cataplexy.
What is narcolepsy?
Alcohol initially induces sleep but causes sleep fragmentation due to this pharmacologic effect.
What is its diuretic effect?
This pharmacologic class of medications can cause physical dependence and are not recommended for long term use.
What are benzodiazepines?
The combination of the midbrain, pons, and medulla is known as this.
What is the brainstem?
This type of muscle condition prevents movement during REM sleep.
What is muscle atonia?
An uncontrollable urge to move the legs while resting describes this condition.
What is restless leg syndrome?
Nurses caring for hospitalized clients should focus on this primary goal to help promote rest.
What is ensuring comfort?
Going to bed only when tired, maintaining consistent schedules, and following bedtime rituals support this biologic process that regulates the sleep–wake cycle.
What is the circadian rhythm?