How long does a feeling of complete disorientation last after waking up from a deep nap?
1. Introduction The feeling of complete disorientation, grogginess, and cognitive impairment upon waking from a deep nap typically lasts between fifteen and sixty minutes. Clinically termed sleep inertia, this transient neurological state occurs when an individual is abruptly awakened during the deepest stage of the sleep cycle, known as slow-wave sleep. During this phase, the … Read more