My 6 week old DD had been waking up at 1hr-2hr intervals all night. At 5.30am DH said he would put her down in her cot in the other room and leave her to cry. I wasn’t happy with this so went to get her after a few minutes. I found that he had left her with a duvet over her head covering her face. When I confronted him about this he said it was fine to do that because he could sleep ok under a duvet so why couldn’t she? Tried telling him about SIDS risk with what he had done and he called me a retard and said I was wrong. AIBU to think it is not ok to leave baby with a blanket over their head?