My daughter slept through the night solidly for about 8 months. Suddenly she started waking when I was heavily pregnant and has carried on for three months. I have no idea whether this was caused by canines arriving or the new sibling but now she wakes about every other night and we are struggling with this on top of newborn baby wakings. My husband is in charge of her at night whilst I do baby feedings and he often stays on her floor for hours. Is this the wrong thing to do? She cries if she notices him leave. She can't just be waking from habit as she doesn't do this every night. Any ideas what is causing this and how to fix it? Pretty please? We neeeed sleeeeeeep! Incidentally, she seems fine with her brother during the day...