Rapid eye movement (REM) sleep behavior disorder is a sleep disorder in which you physically act out vivid, often unpleasant dreams with vocal sounds and sudden, often violent arm and leg movements during REM sleep — sometimes called dream-enacting behavior.
Someone who suffers from this cannot truly go through sleep paralysis. They will get the hallucinations brought on by rapid eye movement (REM), however, they are able to move due to their brains not causing their bodies to remain still.