Am I really that fun? part 2

Last night, at 4 am, I found myself tearing up the stairs to Girl Terror. She was howling and screaming at the top of her lungs. When I stumbled into her room, she was still lying down, wrapped in her blankets, eyes shut, but the sound....oh the sound. When I grabbed her, thinking she must be having a nightmare, she yelled at me "No, Mummy! I still sleeping! I want more sleeping! I lay down now, more!!!!! NO WAKE UP! NO WAKE UP!!!" So, why was I there? She just wanted to confirm with me that 4:00 is not an appropriate waking up time? Did her brother somehow communicate to her how much fun it is to see Mummy at night?