Normally, when you dream during REM (Rapid Eye Movement) sleep, your body remains completely still; it’s like a natural “paralysis” that prevents you from acting out your dreams. But with REM Sleep Behavior Disorder (RBD), this safety mechanism doesn’t work. This means people actually move, talk, or even physically act out their dreams, whether those dreams are calm, exciting, or even violent. This can be unsettling for anyone sharing a room or bed, and it can sometimes be dangerous for the person with RBD, as they might accidentally hurt themselves or others while dreaming. If you or a loved one experiences unusual movements or behaviors during sleep, consult a sleep specialist. RBD can be managed and treated with the right care.