發開口夢

I was putting Natalie to sleep tonight.
After she had fallen asleep for about 5 minutes, I was just about to leave her room. She said, "媽咪﹐我瞓唔著呀!"
I was thinking, "Huh? Aren't you sleeping right now?" I stared at her for a few seconds. She had her eyes closed. She's still sleeping.
Then, I thought it's quite amusing, 明明瞓緊但發開口夢,話瞓唔著. :)