Sleep terrors are most likely to occur during which stage of sleep?

Sleep terrors, also known as night terrors, are most likely to occur during NREM sleep, specifically during the stages of deep sleep within this category. This is because sleep terrors typically happen during the slow-wave sleep stages, which are characterized by the absence of rapid eye movement and significant physiological changes, including slowed heart rate and lower blood pressure.

During deep NREM sleep, the body is in a restorative state, and it is more challenging for individuals to awaken fully. This disconnection between the brain and body is why episodes like sleep terrors can occur, often leaving the individual confused or disoriented if awoken. It’s important to note that these events are different from the vivid dreams associated with REM sleep, where nightmares are more commonly reported.

Thus, the likelihood of experiencing sleep terrors is highest during NREM sleep and particularly in the deeper stages of this cycle.