Hi, I am very close to my auntie who has helped out a great deal with my baby son. She was great with him when he was first born and came and helped out for the first four months. She would sometimes put him to sleep on his front and tried to make him go in a sling which he hated but I was so grateful for the help I didnt say anything, just turned him back the right way and let her carry on. However, she has offered to babysit a couple of times but I now dont feel confident letting her look after him. I caught her co-sleeping with him once, he was under the duvet! She said he was cold! The second time she put a muslin on his face to get him to sleep before he was developmentally ready to remove it himself. She is now offering to babysit again but I dont want to offend her and say no. AIBU? He is now nine months old. Am I being PFB?