Types of Sleep Disorders

Sleep disturbances are not a single or simple problem. There are a wide array of issues that can impact your rest and negatively affect your physical and mental health. Some of the most common types of sleep disorders are:

Type 1: Insomnia

Approximately 35% of American adults and 69% of high school students, don’t get adequate sleep at night. In modern sleep medicine we don’t view insomnia as a lack of sleep, but rather excessive wakefulness of the brain.

Type 2: Hypersomnia

Hypersomnia is characterized by excessive sleepiness, in which a person has trouble staying awake and can fall asleep at any time. Hypersomnia can be caused by narcolepsy and sleep apnea.

Type 3: Sleep Apnea

Sleep apnea is a serious sleep disorder characterized by chronic tiredness during the day, snoring, and periods of apnea (temporary cessation of breathing) which can last from seconds to minutes. The primary symptom is excessive daytime sleepiness. The chronic lack of oxygen from the apnea periods is associated with brain damage and early aging. In fact, sleep apnea doubles a person’s risk for Alzheimer’s disease. Sleep apnea costs the U.S. economy $87 billion a year.

Common symptoms include:

  • Periods of not breathing in sleep
  • Snoring, snorting or gasping in sleep
  • Drowsiness or consistent fatigue
  • Headaches
  • Memory problems
  • Attention problems

Mood Irritability

Getting a diagnosis and treatment for sleep apnea is critical to keeping your brain healthy and preventing or minimizing symptoms of mental disorders. The gold standard for treatment is called a continuous positive airway pressure (CPAP) mask, which delivers a steady stream of air through your passageways.

Some people are hesitant to use a CPAP machine because they think it will be uncomfortable, but design improvements have made them more user friendly. If you have avoided treating your sleep apnea, it’s time to reconsider taking action. Because the brain is so dependent on oxygen, untreated sleep apnea literally kills brain cells, which doesn’t bode well for your mental well-being.

Type 4: Parasomnias

Parasomnias are disruptive sleep-related events, such as:

Disorders of arousal


Sleep-related eating

Sleep terrors

Sleep talking

Type 5: REM (Rapid Eye Movement) Sleep Behavior Disorder

Body muscles that aren’t paralyzed during REM sleep allow for muscle movement during dreams. This type of behavior can be violent and even result in injury. It often involves thrashing around at night because of a bad dream and may even lead to hurting yourself or another.

Type 6: Circadian Rhythm Disorders

This includes people who work late at night (shift work) or who travel across time zones (jet lag). We can help people adapt to their unique sleep schedule by altering their circadian rhythms.

Yours in Health,

Prof Sundardas D Annamalay


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“Psychosomatic experiencing is about working directly with your nervous system. You are about to become intimately familiar and comfortable with your inner survival system. You will learn how to shift the different emotional states to a manageable level within a few minutes. 

When our emotions are running our lives, we are not in a state of calm aliveness. Rather, there are imbalances in the nervous system that cause problems. It causes imbalances in other systems and organs in our body. Not to mention how these imbalances influence our thoughts, feelings and behaviours towards ourselves and others.”


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