Sleep Centers of Middle Tennessee


Daytime Fatigue

Like excessive daytime sleepiness (EDS), daytime fatigue can be caused by a long list of sleep problems, medical problems, medications, and behavioral issues. Daytime fatigue is often characterized by a generalized lack of energy, feeling “tired” or “drained”, or lethargy during the day. Daytime fatigue often interferes with one’s ability to function well. Those with daytime fatigue do not usually report fighting sleep or dozing during the day. One of the most common sleep disorders that causes daytime fatigue is obstructive sleep apnea (OSA). Other sleep-related problems that may contribute to daytime fatigue 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.

This symptom is associated with: