My DS is 4 months and used to occasionally take a dummy but now refuses one. We have recently realised that he is comforted by nuzzling into a muslin and suckling on it and this eventually sends him to sleep, but he does pull it over his face a bit. He has napped with one but only when I’m watching over him, I take it away once he’s asleep if I have to leave the room. He has started waking more in the night (4 month sleep regression I assume) - do you think it would be safe to leave a muslin in his crib attached to our bed? He’s next to me but obviously I will fall asleep and may not notice if he pulls it to his face, but the material is breathable? I really want a better nights sleep but wouldn’t take any risks if there was one. What would you do?