Multiple Sleep Latency Test (MSLT)

• An MSLT is a painless test designed to monitor and evaluate the level of your daytime sleepiness, and may assist your provider with determining the potential cause of this sleepiness.  

• You will be asked to complete another overnight sleep study prior to the typically daytime MSLT. 

•  Following your overnight exam, you will remain in the Sleep Center during the day to complete a series of nap attempts or “trials”.  

• You will remain in your own private bedroom during both exams.  

• Only some of the sensors that are required during the overnight exam will be used during the MSLT, the remainder will be removed. 

• You may bring breakfast and lunch or someone can bring you something from home.  

• The naps will begin 2-3 hours following your overnight exam and will typically conclude about 4-5 p.m.  

• There will be over an hour in between each nap trial where you will be asked to remain alert. 

•  Wifi is available so mobile devices may be used during this time.  

• During the daytime exam all caffeine should be withheld. 

•  Smoking is not recommended and is strictly forbidden 30 minutes prior to the beginning of any nap trial.  

• Patients should complete a Sleep Diary 2 weeks prior to their MSLT