Margaret Mike Sleep & Wake Center

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Overcoming hypersomnia.

Hypersomnia is characterized by excessive sleeping and daytime sleepiness. Some types of hypersomnia are: recurrent hypersomnia and idiopathic hypersomnia. Both have similar signs and symptoms. The only difference is the frequency and regularity of those symptoms.

  • Recurring hypersomnia – This involves periods of excessive daytime sleepiness that last from one to several days and then recur over the course of a year or more. People who experience recurring hypersomnia have long periods without symptoms.
  • Idiopathic hypersomnia – This form of hypersomnia has symptoms of severe sleepiness similar to narcolepsy and often starts in the teens or 20s. No matter how much sleep the individual gets, they never “catch up.” Unlike narcolepsy, there are no symptoms of sleep paralysis, cataplexy or hypnogogic hallucinations. The disorder generally does not run in families. Many of the same treatments used for narcolepsy are used for idiopathic hypersomnia after proper diagnosis by a sleep specialist.

What causes hypersomnia?

There are many different causes for daytime sleepiness. Many are not considered hypersomnia. There are also diseases and conditions where excessive daytime sleepiness is merely a symptom. After all, daytime sleepiness can be caused by use of caffeine, alcohol and numerous precription and OTC medications. Shift work sleep disorder and insomnia sleep disorder can also cause excessive daytime sleepiness that is not hypersomnia. Shift work often disrupts natural sleep rhythms, called circadian rhythms. Insomnia is a separate disorder from hypersomnia.

People with hypersomnia often sleep normally at night but have difficulty waking up and staying awake throughout the day. Hypersomniacs also take frequent naps but do not feel rested from their naps.

Dr. Margaret Mike brings you her exceptional credentials and over 20 years' experience in sleep medicine. She is triple board-certified by the American Board of Sleep Medicine, the American Board of Psychiatry and Neurology and the American Board of Electroencephalography and Neurophysiology.

Dr. Mike is also a fellow of the American Academy of Sleep Medicine and a member of the American Sleep Disorders Association. Which means she is perfectly qualified to help you overcome hypersomnia and other sleep disorders.


Sleep doctor Margaret Mike can improve your sleep and your life. Now is the time to sleep well, be well and live well. Call Margaret Mike, MD Sleep & Wake Center at 972–981-7436 or use our online form to schedule your appointment today. We accept hypersomnia patients from DFW Metroplex, TX, including Plano (Collin County), Bedford, Colleyville, Grapevine (Tarrant County) and Frisco (Denton County).