How to get baby to sleep in their own bed?

So my almost 5 month old sleeps with me. I breastfeed and it’s just easier. My husband works out of town and is gone a a lot. So I’d like to sleep in the same bed as him when he’s home. He will not sleep in the bed if she is in it and she will not sleep in her bassinet. I refuse to do the CIO method. Does anyone here have any advice?