Sleep Centers of Middle Tennessee


Excessive Daytime Sleepiness

Those who suffer from excessive daytime sleepiness (EDS) often find it difficult to get through the day without fighting sleep or dozing. EDS is measured subjectively by way of screening tests (such as the Epworth Sleepiness Scale) and can be measured objectively by way of sleep laboratory testing. One such laboratory test is a Multiple Sleep Latency Test (MSLT), during which a patient undergoes an overnight sleep study followed by a series of nap trials the following day.  EDS can be the result of a host of different problems related to sleep, medical conditions, medications, or behavioral issues. One of the most common sleep disorders that causes EDS is obstructive sleep apnea (OSA). Other sleep-related problems that may contribute to EDS include periodic limb movements (PLM’s), parasomnias (such as sleepwalking, night terrors), insomnia, circadian rhythm disorders (such as jet lag, delayed sleep phase syndrome), and behaviorally induced insufficient sleep syndrome. If a patient suffers from significant EDS despite all of the above listed types of sleep problems being ruled out, a diagnosis of narcolepsy or idiopathic hypersomnia may be made.

This symptom is associated with: