Sleep Basics
Sleep Stages & Physiology
Disorders and Symptoms
Causes & Risk Factors
Treatment & Measurement
100

This disorder occurs when breathing repeatedly stops during sleep.

What is sleep apnea?

100

This stage of sleep is most closely linked to dreaming.

What is REM?

100

Moving your legs uncontrollably at night is a symptom of this syndrome.

What is Restless Legs Syndrome?

100

This parasite causes sleeping sickness.

What is the Tsetse fly parasite?

100

CPAP machines are used to treat this disorder.

What is sleep apnea?

200

This term means difficulty falling or staying asleep.

What is insomnia?

200

This stage restores the body physically.

What is NREM?

200

This parasomnia involves walking while asleep.

What is sleepwalking?

200

Iron deficiency is linked to this sleep disorder.

What is Restless Legs Syndrome?

200

This device is used in sleep studies to monitor brain activity and body functions.

What is polysomnography?

300

Crossing multiple time zones can cause this temporary sleep problem.

What is jet lag?

300

Healthy adults complete this many sleep cycles per night.

What is 4–6?

300

You cannot move when waking up from sleep in this phenomenon.

What is sleep paralysis?

300

Drinking this can worsen sleep apnea symptoms.

What is alcohol?

300

The Apnea-Hypopnea Index measures the severity of this disorder.

What is sleep apnea?

400

Sudden sleep attacks characterize this disorder.

What is narcolepsy?

400

A disorder where people lose normal muscle paralysis during REM sleep.

What is REM Behavior Disorder?

400

This rare disorder involves episodes of prolonged sleep.

What is Kleine-Levin Syndrome?

400

Central Sleep Apnea occurs when this organ fails to send signals.

What is the brain?

400

This disorder is linked to Parkinson’s disease and involves acting out dreams

What is REM Behavior Disorder?

500

This sleep disorder is the most common worldwide.

What is insomnia?

500

Sudden muscle weakness triggered by strong emotions is called this.

What is cataplexy?

500

A prion mutation causes this fatal disorder that prevents sleep.

What is Fatal Familial Insomnia?

500

Narcolepsy is linked to a deficiency of this neuropeptide.

What is hypocretin (orexin)?

500

Kleine-Levin Syndrome is nicknamed this “fairy tale” name.

What is Sleeping Beauty Syndrome?