Sleep Disorders Clinic

The sleep disorders service sees referrals for adult and pediatric patients with conditions or symptoms that include:

  • Obstructive sleep apnea
  • Narcolepsy 
  • Parasomnias (undesired body movements associated with sleep)
  • Periodic limb movements in sleep
  • Seizures in sleep

Formal sleep studies include:

Multiple sleep latency testing

  • Evaluates patients with suspected narcolepsy
  • Objectively study patients who complain of daytime hypersomnolence 
  • This assesses sleep tendency by measuring the number of minutes it takes the patient to fall asleep.


  • A non-invasive, all night monitoring of a patient's sleep
  • Variables routinely monitored are:
    • Chin EMG (muscle activity) 
    • EEG (brain waves)
    • EOG (eye-movements)
    • For sleep staging, ECG, nasal and oral airflow, respiratory effort, and oxygen saturation to address sleep related breathing disorders 
    • EMG of the limbs to monitor for abnormal body movements such as periodic limb movements

Home sleep apnea test available

The home sleep test is a great alternative to traditional testing in a sleep lab.

Among other variables, the home sleep test records:

  • Sleep time
  • Oxygen levels
  • Heart rate
  • Body position and movement
  • Snoring decibles

After the device is returned the next day, these recordings are downloaded to be reviewed by a physician. The equipment is available at our Iowa River Landing location.

Sleep disorder treatments

  • Continuous Positive Airway Pressure (CPAP)
    • The most widely used treatment for obstructive sleep apnea
    • CPAP provides a gentle flow of positive pressure air that holds the airway open during sleep
  • Bi-level Positive Airway Pressure (Bi-Level PAP)
    • Delivers a positive pressure flow but with differing inspiratory and expiratory pressures
    • Bi-level PAP is most commonly indicated for patients with obesity-hypoventilation syndrome, COPD, CHF, a variety of neuromuscular disorders and those that are intolerant of CPAP therapy
Iowa's own Mark Dyken, MD discussing naps on Good Morning America.


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Care Team

Neuropsychological Rehabilitation Counselor, Neurology

  • Jennifer Hand, LMHC, CRC