Sleep Disorders - Parasomnias These are abnormal physical behaviors that occur while you are sleeping. They include sleepwalking, night-terrors, REM behavior disorder, which can cause you to become violent while dreaming, rhythmic movement disorder, which can cause you to bang your head or rock your body while sleeping, bed-wetting and teeth-grinding. We can effectively treat parasomnias with medications. Sleep Apnea | Insomnia | Narcolepsy | Parasomnias | Sleep Walking | Norturnal Bruxism | Fibromyalgia | Hypersomnia | Cataplexy | Restless Leg Syndrome | Other Sleep Disorders Please read through this site to obtain a better understanding of how South Texas Sleep Disorder Clinic can help you obtain a lifetime of better sleep.