Sorry, no suggestions here, just a comment...
... Hahaha, dogs are just like kids in a lot of ways. We all have seen that child who received an expensive toy but ended up enjoying playing with the box more than the actual toy. So too have most of us seen a dog who was given the 'best', and most expensive, toy, food, bed, etc... found to have that dog totally ignore it. Hmmm, so it seems with your baby's new bed. Maybe your dog is one of those that prefers an old t-shirt or the bathroom rug to snuggle up on over a nice bed. Also, dogs, just like people, don't like change. She may just need time to get used to it. Then again, maybe not.