Do you think it is a warmth thing? that she likes to be cuddled next to you for the extra warmth and security? We never actually co-sleep with the kids in our bed, but they were in our room until 3 months and then the cot, but Paige was in a cot in our room until she was nearly 12 months because of reno's we were doing at the time. Is your DH worried about waking her up, or Charlotte waking you up? or is it that he just wants space? It is easier for them to want to have them in their own room at times kwim?

Are you able to put her into her own cot after she has fallen asleep with you?