It is different from 抄醒 (to wake someone up)
扎醒 means : " to suddenly wake up on ones own" ( usually from nightmare or from sudden realization of something important in your dream) if it is not in CantoDict, it should be.
扎醒 means : " to suddenly wake up on ones own" ( usually from nightmare or from sudden realization of something important in your dream) if it is not in CantoDict, it should be.