Other signs, too, often go undetected, including nightmares and a tendency for a child to want to be alone.

Dysfunctional sleep patterns, including nightmares, too little sleep, difficulty falling asleep, or even oversleeping.

Suddenly stopping these medicines may cause nervousness, seizures, and a change in REM sleep that increases dreaming, including nightmares.

Pinkham also suffers from other parasomnias, including severe nightmares and night terrors, and faces anxiety when going to sleep at night.

While powerful, mefloquine has serious drawbacks, including nightmares and paranoia.

The children, by then 14 to 20 years old, still suffered a range of psychological problems, including recurrent nightmares, difficulty in concentrating and in sleeping, and being easily startled.

Symptoms, including nightmares, flashbacks and nervousness, can last from weeks to years.

REM rebound has been defined as a "marked increase in REM sleep with increased frequency and intensity of dreaming, including nightmares."

Has shown effectiveness in the treatment of nightmares including nightmares related to post traumatic stress disorder.

The players themselves suffered from a series of unpleasant side effects, including amnesia, insomnia, nightmares, night terrors, and even suicide in some versions of the legend.