Crates or playpens can be wonderful with some form of moderation. The crate is somewhat of a playpen for dogs. You must design it so it can be likeable. When my children were young they slept with us, not because they wanted to, but I felt they would be safe next to us. There comes a time when they must graduate to their own beds. When they're young you want to get them off to a good start. With people, you worry about SIDS, but in the doggie world there are other things that go on. You have to do what you have to do in life and there's nothing wrong with a crate as long as it's done in love and in some type of regiment for the well-being of your pet. Everyone cannot stay at home, I know I can't. My yorkies wouldn't be able to live like they do if I did. Be persistent with your crate training and it will pay off for you in the long run. Good luck and remember, you are the alpha and baby depends on you for direction.