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Epileptic seizure, nightmares. Night terror, also called sleep terror, is a sleep disorder causing feelings of panic or dread and typically occurring during the first hours of stage 3–4 non-rapid eye movement (NREM) sleep [1] and lasting for 1 to 10 minutes. [2] It can last longer, especially in children. [2]
Confusional arousal. A confusional arousal (also known as sleep drunkenness or severe sleep inertia) is medical condition where a person awakened from sleep shows mental confusion for at least several minutes. [1][2] Complete or partial amnesia of the episodes may be present. [2]
Sleepwalking, also known as somnambulism or noctambulism, is a phenomenon of combined sleep and wakefulness. [1] It is classified as a sleep disorder belonging to the parasomnia family. [2] It occurs during the slow wave stage of sleep, in a state of low consciousness, with performance of activities that are usually performed during a state of ...
Sleep paralysis. The Nightmare by Swiss artist Henry Fuseli (1781) is thought to be a depiction of sleep paralysis perceived as a demonic visitation. Sleep paralysis is a state, during waking up or falling asleep, in which a person is conscious but in a complete state of full-body paralysis. [1][2] During an episode, the person may hallucinate ...
Parasomnia. Specialty. Sleep medicine, psychology. Parasomnias are a category of sleep disorders that involve abnormal movements, behaviors, emotions, perceptions, and dreams that occur while falling asleep, sleeping, between sleep stages, or during arousal from sleep. Parasomnias are dissociated sleep states which are partial arousals during ...
Somniloquy, commonly referred to as sleep-talking, is a parasomnia in which one speaks aloud while asleep. It can range from simple mumbling sounds to loud shouts or long, frequently inarticulate, speeches. It can occur many times during a sleep cycle and during both NREM and REM sleep stages, though, as with sleepwalking and night terrors, it ...
Non-rapid eye movement sleep (NREM), also known as quiescent sleep, is, collectively, sleep stages 1–3, previously known as stages 1–4. Rapid eye movement sleep (REM) is not included. There are distinct electroencephalographic and other characteristics seen in each stage. Unlike REM sleep, there is usually little or no eye movement during ...
A comfort object, more formally a transitional object or attachment object, [1][2] is an item used to provide psychological comfort, especially in unusual or unique situations, or at bedtime for children. Among toddlers, a comfort object often takes the form of a blanket (called a security blanket) or a stuffed animal, doll or other toy, and ...