When you hear those little children who laugh in your sleep is a real pleasure to watch and makes you daydream. It makes me wonder if they talk to God or with their guardian angel. I knew that the Guardian Angel comes in their dreams and shows them the beautiful images that you delight them, hence they laugh in sleep .
My grandmother told me that when young children asleep and laugh means that angels play with them ... and when they cry means the Mother of Lord reprimands them .