It’s 3 am I’m going crazy

My three year old daughter for the past two nights just wakes up too many times crying we ask her what’s wrong and she just says I want my mommy or I want my daddy we cuddle her to sleep but not even ten minutes later she’s back to crying again. I ask her what’s wrong again and she’ll either repeat herself or won’t answer. It’s clear she’s exhausted but for some reason keeps waking up. Any thoughts or ideas what this could be she’s usually an extremely heavy sleeper.