my 3mth old girl keep sleeping on her right side since birth and now right side of head is a bit 'flat' and some advice me to let her sleep on yaolan... will she be relied on yaolan? should I let her sleep on yaolan? troubled....

Our baby had the same issues - so what we moved her to the opposite side of the bed so she faces left. Also we make sure all her toys and engage with her on the left. This way you "even" out both sides

My 4 kids all sleep in yaolan in the daytime cos my mum find them sleeping longer compare to in the bb cot. I dont see any issue in that.