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Multiple Sleep Latency Testing

The multiple sleep latency testing (MSLT) is done immediately following your overnight sleep study and is used to evaluate your degree of daytime sleepiness. 

After you wake up, we'll remove some of the sensors and give you time to relax. The test consists of five naps scheduled throughout the day separated by 2-hour breaks.

If your overnight study shows evidence of a sleep disorder, your MSLT may be canceled or shortened. Your referring provider should have the results of your sleep studies in two to three weeks.

Your MSLT Checklist

Please bring the following items:

  • Sleep journal filled out for 2 weeks (a regular sleep-wake schedule is important to have in place prior to the test)
  • Comfortable, loose fitting clothes
  • Entertainment items (books, magazines, DVDs, laptop/tablets, crafts, etc.)
  • Breakfast, lunch, and snacks (we don't have a cafeteria on-site, but we do have a refrigerator for food storage)
  • Toiletries (toothbrush, toothpaste, lotion, etc.)

Important Notes

  • Certain medications can affect the MSLT. If your physician or the sleep lab has asked you to stop taking certain medications, be sure to stop them in time for the test. 
  • No caffeine is allowed during the day of the MSLT.
    • A urine screen will be collected the morning of the study.
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People are at the heart of great health care. That's why we are committed to delivering compassionate, high-quality care tailored to the communities we serve. 


Together with our community partners and patients, we're building a stronger, healthier future for all Idahoans.

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Contact Us In Fruitland (208) 381-2222