you WERE sleeping with you're doll Chucky, but you woke up at 3 am. You went downstairs looking for Chucky after noticing that he's gone, you saw the doll sitting on the table with a knife by it's side...

"Come closer...."

He mumbled, you didn't hear him because he wasn't trying to let you hear him. He was hoping you'd come closer, he wasn't trying to kill you because you're a child but he needed you to bring him upstairs to you're parents room in fear. So that way he can k!ll them.