Do night terrors happen in REM?
Subsequently, one may also ask, what triggers night terrors?
Sleep terrors sometimes can be triggered by underlying conditions that interfere with sleep, such as: Sleep-disordered breathing — a group of disorders that include abnormal breathing patterns during sleep, the most common of which is obstructive sleep apnea. Restless legs syndrome.
In this way, do nightmares occur in REM sleep?
Sleep is divided into two types: rapid eye movement (REM) and nonrapid eye movement (non-REM). REM and non-REM sleep alternate in 90- to 100-minute cycles. Most dreaming occurs during REM sleep. Nightmares usually occur in the middle of the night or early morning, when REM sleep and dreaming are more common.
It's rare to see night terrors manifest alongside a diagnosable mental illness, like anxiety or depression. According to experts, it doesn't seem to be part of any one mental health syndrome.