Ray often wakes up at night talking loudly and incoherently. during this time, his heart rate increases, and he recalls vague images of someone pressing on his chest. however, he is never fully awake and returns to sleep. in the context of sleep disorders, ray is exhibiting symptoms of

In the context of sleep disorders, Ray is exhibiting symptoms of sleep terrors (night terrors).

Sleep terror is a sleep disorder and an undesired occurrence in which an affected person screams and experiences intense fear while still asleep. Sleep terror incidence usually continue from seconds to a few minutes, but it may last longer. During a sleep terror, an individual might have any of these symptoms; fast breathing and a quicker heartbeat, sweating, screaming in distress, and acting upset and afraid.

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