Beck, are you going out and about for walks? My HN always said that babies need plenty of fresh air in their lungs to sleep and I think she has something there.
Maybe she just wants to be near you? HERE is a post I posted almost the same as you but Matthew was 6 months, might be worth a read...I also remember just sitting on the couch with Matthew fast alseep in my arms as that was the only place he would nap - oh the things we do!
The port-a-cot is a great idea if she is too big for the bassinette?
Bookmarks