Any cures for people who act out their dreams, i.E. Punching in their sleep?

Need a sleep md. Acting out dreams could be a manifestation of rem behavior disorder. Other sleep disorders can also cause acting out dreams and violet behavior. Depending on the cause dictates treatment. Classically Clonazepam is used.
RBD. Rem behavior disorder is when your bodys natural mechanism to paralyze voluntary muscle via the effect of glycine on spinal cord fails. You can use rem suppressant antidepressants or Clonazepam (benzo's), and also ensure safety of you and your partner, please get a sleep study and mslt and mwt done.
PTSD?? I have a number of patients with ptsd; psychiatry has used prazosin at bedtime for their nightmares, which includes acting out, with some success.