My daughters is the same, I use Childs farm conditioning hair spray xx
i use the whole curl range from child’s farm, it’s really good 🤍
My baby had the same tangle curly knots at the back when his curls came in, I think a silk baby bed sheet, detangling spray is excellent and a small detangler comb, using conditioner at bath time like daily or every other day and combing in the bath. I think at one point I had to lightly trim the back where the knots were the most and that helped too. I can't remember which products I use I think it might be Nalas or my little coco spray in Boots
Our friends little on kept playing with their hair for comfort and kept pulling out bits until they had a bald patch. They gave him a barbie as comfort object so he played with the hair on that and it worked perfectly