Chronic Fatigue Syndrome Complete Practice Test 2026

Individuals with Chronic Fatigue Syndrome (CFS) frequently report experiencing unrefreshing sleep. This symptom is characterized by a feeling of fatigue and lack of rejuvenation even after a full night’s rest. A key feature of CFS is that patients may spend sufficient hours in bed yet still wake up feeling as if they have not slept at all. This unrefreshing quality of sleep contributes significantly to the overall fatigue and other symptoms associated with the condition.

While insomnia, nightmares, and sleepwalking are sleep issues that can occur in the general population, they are not as uniquely or predominantly associated with CFS as unrefreshing sleep is. Many individuals with CFS also endure sleep disruptions, but the overarching experience of waking unrefreshed is a hallmark of the disorder, influencing both their physical and cognitive functioning.