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Sleep Medicine Center

Outpatient Services > Types of Sleep Disorders

Sleep Disorders

As many as 70 million Americans have sleep-related problems, ranging from difficulty falling asleep to not being able to stay awake. Medical problems can lead to sleep problems, as can lifestyle choices or stress. Some sleep problems have more than one cause.

A special team of board-certified physicians and technical staff at the Sleep Medicine Center at Lancaster General Health is dedicated to diagnosing and treating a variety of sleep disorders, and helping you get a good night’s sleep.

Sleep Apnea Syndrome

Sleep apnea is a disorder in which breathing becomes irregular during sleep. In some cases, breathing stops completely. Symptoms include loud snoring, snorting and becoming restless. Sleep apnea can cause:

  • Daytime sleepiness
  • Impaired alertness and mental capacity
  • Personality changes
  • Morning headaches

Excessive daytime sleepiness

Excessive daytime sleepiness makes it difficult to stay awake and alert during the day. This condition is often accompanied by:

  • Decreased mental performance in school or work
  • Memory and/or concentration problems


Insomnia refers to difficulty falling asleep or waking up frequently during the night or early morning. Insomnia can have many causes, including poor sleep habits, stress, excessive use of alcohol or drugs, sleeping pills, or shift work. Treatment of chronic insomnia depends on the cause.

Abnormal sleep/wake rhythms

An internal biological clock determines when we fall asleep and wake up. Many factors can disrupt the normal sleep/wake cycle, including shift work, jet lag or a poor sleep schedule. This disorder can cause:

  • Insomnia
  • Excessive daytime sleepiness

Additional sleep disorders

The Sleep Medicine Center at LG Health treats a wide range of sleep disorders. Determining treatment depends on diagnosing the cause. This requires a full consultation with a sleep physician, who will determine which tests and treatments you need. Other sleep disorders include:

  • Delayed sleep phase syndrome
  • Narcolepsy
  • Night terrors
  • Nightmares
  • Nighttime convulsions
  • Sleepwalking
  • Sleep talking

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