1. Health

Common Sleep Disorders

Profiles and descriptions of some of the more common sleep disorders, including: insomnia, sleep apnea, parasomnias (sleepwalking, night terrors, night eating), REM sleep disorders, narcolepsy, and sleep deprivation.

What is Sleep Apnea?
Learn about sleep apnea, including: the definition, the various causes, the classic symptoms, the important consequences, and the diagnosis.

Sleep Disorders that Make You Feel Too Sleepy
If you have trouble staying awake, suffer from excessive daytime sleepiness, can easily doze off, take naps on a regular basis, and have difficulty with attention or concentration, you are probably too sleepy. You may ask: What sleep disorders can make me feel too sleepy? Some sleep disorders make it so you can t sleep (like insomnia), but many...

Sleeping Disorders List and Diagnostic Codes
What is included in a complete list of sleeping disorders? Learn about conditions including insomnia, sleep behaviors called parasomnias, circadian rhythm problems, movements, psychiatric conditions, and breathing disorders such as sleep apnea. You can also reference the associated diagnostic codes used for billing purposes. Explore this...

Sleep Disorders that Make It So You Can’t Sleep
If you find yourself lying awake at night, waiting desperately for sleep to come, you may wonder what sleep disorders may make it so that you can t sleep. If you can t sleep this is most commonly due to insomnia, but there are other conditions that might unexpectedly impact your ability to sleep. Some of these sleep disorders and conditions...

What Is Central Sleep Apnea?
There can be many causes to disrupted breathing during sleep, and one of them is central sleep apnea, but what is central sleep apnea? Learn more about this condition, including its definition and how it is diagnosed and treated.

What is Sleep Myoclonus?
If you have ever seen your infant jerk suddenly during sleep, you may want to learn about sleep myoclonus.

What is UARS?
Learn about upper airway resistance syndrome (UARS) including the special test used for its diagnosis and potential treatment options.

Unexplained Nighttime Binges May Be Due to Sleep Eating Disorder
If you are having difficulty shedding those extra pounds, and you find evidence of unexplained nighttime binges, this may be due to sleep eating disorder. Learn about this condition, what sleep disorders are associated with it, how it is diagnosed, and the treatment options available.

'Back to Sleep' Prevents Sudden Infant Death
By following the simple advice to put infants on their backs to sleep, the incidence of sudden infant death syndrome (SIDS) can be greatly reduced and sudden infant death can be prevented.

Groaning During Sleep May Represent Catathrenia
There are many potential breathing disorders that may occur at night. One of them, catathrenia, is sometimes described as repeated moaning. Learn more about this disorder and how it can be differentiated from conditions such as snoring and sleep apnea.

What Is REM Behavior Disorder?
If you or a loved one have ever acted out dreams while remaining asleep, you may have realized something was wrong, but what is REM behavior disorder? Learn about the cause and dangers of acting out one's dreams, what medical conditions are associated, and what treatment options are available.

What Are Sleep Terrors?
When a child begins screaming in the midst of the night, inconsolable but remaining asleep, it quickly becomes important to understand what sleep terrors are. Learn about these episodes, why they occur, and what treatment options are available.

Exploding Head Syndrome
In a rare and unusual sleep disorder, individuals may hear loud noises during sleep transition that may represent exploding head syndrome. Learn about this condition, what it is associated with, and the treatment options.

Bedwetting Occurs Commonly, Can Be Effectively Treated
The phenomenon of bedwetting, or sleep enuresis, occurs commonly and fortunately can be effectively treated. Learn about this condition, its causes, and some of the potential treatment options.

Nocturnal Cramps May Cause Leg Discomfort, Disrupt Sleep
Nocturnal cramps are one of the common disorders that can affect the legs during the night, causing discomfort and disrupting sleep. Learn about this condition, including its causes, the conditions associated with it, what your medical provider will find on examination, and what other similar conditions it might be.

Fatal Familial Insomnia Caused by Gene Mutation
Learn about the rare genetic disorder called fatal familial insomnia. This condition starts with difficulty sleeping but gradually evolves to include additional neurological symptoms and ultimately ends in coma and death.

Nocturnal Myoclonus May Mimic Seizures
One of the common conditions that may cause leg movements during sleep, nocturnal myoclonus may mimic seizures, especially in newborns. Learn more about this curious condition, including how it is differentiated from seizures.

Night Starts Occur Commonly, Require No Treatment
Though the phenomenon called night starts occurs commonly, the condition generally requires no treatment. It is typically experienced just as you drift off to sleep, somewhere between wakefulness and sleep. Suddenly you have a sensation that you are falling, and you awake with a sudden start. Learn more about this frequent occurrence.

What Is Insomnia?
It is one of the most common of the sleep disorders, but what is insomnia? Learn its definition, how often insomnia occurs, and its classic clinical features.

Acute Insomnia - What Causes Your Insomnia
There are plenty of reasons to not get a good night's sleep. When these lead to problems falling or staying asleep, you may have insomnia. What causes you to have insomnia? Are there certain things that are especially disruptive? How does stress change your sleep?

Sleep Paralysis - What Have Your Experiences with Sleep Paral…
In what is a fairly common condition, sleep paralysis experiences tend to be similar. Share your experiences so that others may find comfort or marvel at the phenomenon.

Overview of Common Sleep Disorders
Learn basic information about some of the most common types of sleep disorders.

Understanding the Terrors of Sleep Paralysis
Learn about the common features of the terrifying condition known as sleep paralysis, including how often it occurs, the potential causes, and how it should be treated.

What is Acute Insomnia?
Learn about acute insomnia, including: the definition, the various causes, the classic symptoms, and how it is diagnosed.

What is Chronic Fatigue Syndrome?
Learn about Chronic Fatigue Syndrome, including: the definition, its symptoms, and how it is diagnosed.

The National Institute of Neurological Disorders and Stroke provides information about hypersomnia, or excessive sleepiness.

The National Heart Lung and Blood Institute provides information about insomnia, or trouble falling asleep or staying asleep.

The National Institute of Neurological Disorders and Stroke provides information about narcolepsy, which is an inability to regulate sleep-wake cycles normally.

Restless Legs Syndrome Foundation
Learn about Restless Legs Syndrome by exploring the resources available at the Restless Legs Syndrome Foundation.

Sleep-Related Eating Disorders
Learn about the unusual condition of Sleep-Related Eating from the experts at Cleveland Clinic.

What is PLMS
Periodic limb movements of sleep (PLMS) is one of the sleep disorders that may cause disruptive movement of your legs, much like restless legs syndrome (RLS). Learn more about PLMS.

The Four Defining Features of Narcolepsy
Narcolepsy is a disorder of excessive daytime sleepiness, but it also has four defining features that make it unique among the sleep disorders. Though only one in three people with narcolepsy have all four features, they can be useful in identifying those at risk for the disorder.

What is Snoring?
Snoring may be a familiar companion, but just what is snoring and what are the causes and consequences? By understanding some of its basic features you may discover ways to eliminate its presence, especially if it is bothersome to your sleep or the sleep of your loved ones.

What Is RLS?
Restless legs syndrome (RLS) is one of those conditions that sounds a little too strange to be true, but if you have ever laid down to fall asleep and felt an uncomfortable sensation of bugs crawling under your skin, you may be all too familiar with what RLS is. This condition may leave you kicking your legs as you fall asleep, but a better...

What is Narcolepsy?
Narcolepsy may cause excessive sleepiness and other symptoms. Learn about this neurologic condition, including its causes and options for diagnosis and treatment.

What is SAD?
Seasonal affective disorder (SAD) is a subtype of depression that seems to follow a seasonal pattern. Learn about the symptoms of SAD, its cause, and the treatment options.

What Are Circadian Rhythm Disorders?
Difficulties falling asleep or staying awake at the proper times may suggest you have a problem with your biological clock called a circadian rhythm disorder, but what are circadian rhythm disorders? These common conditions may include wanting to sleep at an atypical time, irregular sleep patterns, and even jet lag or shift-work sleep disorder. Discover more about the circadian rhythm disorders a…

Profile on Shift-Work Sleep Disorder
In individuals who work at atypical times, there may be problems relating to an inability to obtain sufficient sleep, to preserve alertness during their shifts, and to maintain social relationships and activities. These difficulties relate to problems with the circadian rhythm and are collectively called shift-work sleep disorder. Learn more about this.

Profile on Jet Lag
If you have ever traveled across multiple time zones over a short period of time, you may have suffered from jet lag. Learn a little about this common condition and what can be done about it.

Profile on Irregular Sleep-Wake Rhythm
Individuals with an irregular sleep-wake rhythm have trouble sleeping through the night. In fact, they may sleep in short periods scattered around the clock. Learn more about this disorder and why it may be more common in the elderly.

Profile on Nonentrained Circadian Rhythm Sleep Disorder
Some individuals have a circadian rhythm that is misaligned from the natural day-night pattern and may cycle between periods of insomnia at night and excessive sleepiness during the day. These individuals have a nonentrained circadian rhythm disorder. Learn more about this condition.

Profile on Advanced Sleep Phase Syndrome
Discover more about advanced sleep phase syndrome, a disorder affecting the biological clock which controls the body's natural circadian rhythm.

What Is Delayed Sleep Phase Syndrome?
Learn about delayed sleep phase syndrome, which is one of the circadian rhythm sleep disorders.

Help for Insomniacs
If you have difficulty falling or staying asleep or your sleep is not refreshing, you may be suffering from insomnia. Learn about the various subtypes of insomnia, the common symptoms, various potential causes, how it is diagnosed, and the treatment options including medications and behavioral changes.

Sleep Apnea Overview
Sleep apnea is a common condition that affects millions of Americans and the following sleep apnea overview includes a description of this condition including its definition, sub-types, symptoms, causes, diagnosis, treatment, and consequences.

What Are Parasomnias
If you have ever had an unusual behavior or experience during your sleep, you may wonder: what are parasomnias? From the Latin meaning “around sleep”, parasomnias are a collection of sleep disorders that are characterized by abnormal actions or events that occur during sleep. Learn more about these phenomena.

What is Kleine-Levin Syndrome?
Teens often sleep more than adults, but some of these youth may rarely have a neurological disorder that causes recurrent episodes of excessive sleep called Kleine-Levin syndrome. What is Kleine-Levin syndrome and what makes it unique?

Learn About Children and Sleepwalking
Sleepwalking is a common condition that occurs in children, but what underlies this behavior? Sleepwalking may occur in the setting of other sleep disorders such as parasomnias, sleep apnea, and restless legs syndrome. You may wonder not only about the causes of sleepwalking, but also whether it requires treatment.

Delayed Sleep Phase Syndrome in Teenagers
If you struggle to get your teenager to bed at a reasonable hour and fight to get them out of bed in the morning, you may be dealing with delayed sleep phase syndrome (DSPS). This relatively common condition can be accentuated during adolescence when the pressures of school schedule restraints conflict with changes in the body’s circadian rhythm.

Understand the Incidence of Nightmares in Children
Nightmares are a common occurrence that can affect us throughout our lives, but there is nothing more terrifying than an inconsolable child who experiences recurrent nightmares. If we can understand the incidence of nightmares in children, including identifying potential causes, we can all sleep a little better.

What Are Confusional Arousals?
Parasomnias are a group of disorders that include behaviors that occur around sleep, with a common one affecting children being confusional arousals. What are confusional arousals and what can be done about them?

What is Behavioral Insomnia of Childhood?
There may be many reasons why your child has difficulty sleeping at night, but two common causes are classified under the condition called behavioral insomnia of childhood. What is behavioral insomnia of childhood?

What is Sleep-onset Association Type of Behavioral Insomnia?
Sleep Onset Insomnia - What is Sleep Onset Insomnia

What is Limit-setting Type of Behavioral Insomnia?
One of the two types of behavioral insomnia of childhood, the limit-setting type occurs when parents lose control of the behaviors expected around bedtime and during awakenings from sleep. This condition often occurs in preschool-aged and school-aged children who stubbornly challenge their parents, especially at bedtime, making the bedroom a...

What is Ondine's Curse?
Ondine's curse (also known as congenital central hypoventilation syndrome) is a rare, severe form of sleep apnea in which the affected individual completely stops breathing when falling asleep.

What Are the Symptoms of Restless Legs?
There are characteristic symptoms of restless legs syndrome (RLS) that help identify and diagnose the condition. What are the symptoms of restless legs? When do the feelings of restless legs commonly occur? How can restless legs affect your sleep? Learn the answers with the help of UpToDate, a resource for health care providers and patients alike.

What Are Restless Legs?
If you find yourself suffering from discomfort with an irresistible desire to move your legs around at night, you may wonder: what are restless legs? What are the characteristic symptoms of restless legs syndrome? Are there other conditions that may predispose someone for having restless legs? Learn the answers with the help of UpToDate, a...

What Are the Symptoms of Insomnia?
For those who have difficulty falling or staying asleep and when sleep is simply not refreshing, the problem of insomnia can be obvious. There are other potential symptoms beyond an inability to sleep, however, and the physical and mental effects may be significant. Learn about the symptoms of insomnia.

What Is SIDS?
What is sudden infant death syndrome (SIDS)? What are some of the defining characteristics of this condition? Learn about SIDS and its occurrence in the sleep of young children.

Symptoms of Sleep Paralysis
Sleep paralysis is a unique experience, but what are some of the most common symptoms of this condition? From an inability to move to hallucinations to fear, learn about the symptoms of sleep paralysis.

What Is Sleep-related Rhythmic Movement Disorder?
What is sleep-related rhythmic movement disorder (RMD)? If your child has been observed to rock, head bang, or rhythmically move in the early part of sleep, you may wish to learn about RMD. What conditions might occur with it? Learn about the diagnosis of RMD as well as the treatment options to keep your child safe.

Idiopathic Hypersomnia
Excessive daytime sleepiness may represent a condition called idiopathic hypersomnia. What is idiopathic hypersomnia? What testing is required to rule out other conditions before accepting this diagnosis? Are there treatment options for idiopathic hypersomnia? Learn more about this condition.

Understanding Narcolepsy in Children
If your child has excessive daytime sleepiness or problems with attention, behavior, or mood, you may want to consider whether narcolepsy may be the underlying cause of these difficulties. How does narcolepsy present in children? What are the necessary diagnostic tests? What treatment options are available? Learn about narcolepsy in children.

What Is African Sleeping Sickness?
One of the rare infectious diseases that may lead to a fatal sleep condition, what is African sleeping sickness? Learn about the clinical features, diagnosis, and treatment of this disease.

Is It Sleep Paralysis or a Night Terror?
What is the difference between sleep paralysis and night terrors? Learn how to distinguish these two conditions from one another, including distinctive causes and treatments.

What Is Obesity Hypoventilation Syndrome?
What is obesity hypoventilation syndrome? If you are overweight and find yourself feeling short of breath, you may want to learn about this condition. It often overlaps with obstructive sleep apnea and may cause similar symptoms. Also discover why it is sometimes referred to as Pickwickian syndrome.

Sleep Apnea and Pregnancy
Can sleep apnea occur during pregnancy? Learn about the factors that may increase your risk of developing snoring or breathing problems such as sleep apnea when pregnant. Consider the symptoms of sleep apnea in pregnancy and discover possible treatments.

What Is the Difference Between Sleep Eating Disorder and Night Eating Syndrome?
What are the key differences between sleep-related eating disorder and night eating syndrome? These two distinct problems can be distinguished by key features, including the level of consciousness during the episodes. Learn about these medical conditions and some of the problems that may be associated with sleep eating.

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