Sleep Lab

1119 Highland Avenue, Suite 8
Clarkston, WA 99403

Daytime hours are limited. Please call for more information. If we are not available, leave a message and we will return your call within 2-3 business days.

Tri-State Sleep Lab blends the use of state-of-the-art technology and equipment with a caring, relaxing atmosphere for patients with suspected sleep disorders. Their experienced staff consistently scores in the top percentile for patient satisfaction.

Each of the four private bedrooms is complete with an in-suite bathroom, brand new comfortable spacious bed, recliner, and flat screen television.

Tri-State Sleep Lab is accredited by the American Academy of Sleep Medicine, which reflects their commitment to ensure that patients receive the highest quality of care from a highly specialized staff. All tests performed in the Tri-State Sleep Lab are interpreted by Keith Popovich, MD, Board Certified Sleep Physician.

Common Sleep Disorders

Sleep disorders that affect the quality of sleep can lead to serious chronic health issues such as diabetes, hypertension, congestive heart failure, irregular heart rhythm, clinical depression and stroke. Leaving a sleep disorder undiagnosed and untreated can make for frustrating nights, difficult mornings, and impaired function throughout the day.

  • Narcolepsy
    • A chronic neurological disorder of the central nervous system that regulates sleep and wakefulness
  • Obstructive Sleep Apnea (OSA)
    • Periodic obstruction of the upper airway during sleep; it is the most common medical cause of excessive daytime sleepiness
  • Periodic Limb Movement Disorder
    • Defined by repetitive limb movements that occur during sleep and cause sleep disruption resulting in daytime sleepiness
  • Primary Snoring
    • Harmless, but can cause many small interruptions throughout the night that prevent deep sleep

Services Offered

Services offered, but not limited to:

  • Diagnostic Polysomnogram (PSG)
    • General overnight monitoring and evaluation without treatment
  • Continuous Positive Airway Pressure (CPAP) titration study
    • If Sleep Apnea is diagnosed during a recent PSG, the patient returns to the Sleep
      Lab to determine an adequate CPAP pressure setting to open the airway and control sleep apnea
  • Split Night PSG
    • When moderate or severe Sleep Apnea has been discovered in the first part of the
      sleep study, the second part is used for treatment of the disorder using CPAP
  • Multiple Sleep Latency Test (MSLT)
    • A method used to diagnose Narcolepsy and measure the degree of daytime
    • To ensure accurate results, it is performed the morning following a Diagnostic PSG
      and a two-week recording of a sleep diary
  • Home Sleep Study
    • A home sleep study may be ordered if there is a strong suspicion of OSA
    • Home studies are not suitable for those patients with significant co-morbid medical
      conditions that may degrade the accuracy of the test, including, but not limited to,
      pulmonary disease, neuromuscular disease, congestive heart failure, and oxygen therapy


Patients must be referred to Tri-State Sleep Lab by their primary care provider and must be four years of age or older.


All commercial insurances will be billed for you, though co-pays are due at the time of your visit. If we are not in your insurance company’s preferred network, your insurance benefits may not pay us as they would an in-network provider and you will be responsible for the difference.

We accept most types of insurance at Tri-State Memorial Hospital & Medical Campus. If you have questions if one of our providers is "in network" for your health insurance plan, please contact your insurance company directly or you may contact one of our Patient Access Representatives at 509.254.2716.

To see more information about our pricing and billing process, please click here.​

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