A Manger (no (guest) room for them at the inn: the manger proved to be a convenient alternative: the hay was soft, the box was up and off the ground, and the sides tall enough to keep her child safely inside
So Joseph also went up from the town of Nazareth in Galilee to Judea, to Bethlehem the town of David, because he belonged to the house and line of David. He went there to register with Mary, who was pledged to be married to him and was expecting a child. While they were there, the time came for the baby to be born, and she gave birth to her firstborn, a son. She wrapped him in cloths and placed him in a manger, because there was no guest room available for them.

A manger or trough is a rack for fodder, or a structure or feeder used to hold food for animals. The word comes from the Old French mangier (meaning “to eat”), from Latin mandere (meaning “to chew”)
https://en.wikipedia.org/wiki/Manger