noun
crib
KRIB/krɪb/
A small bed with high sides for a baby.
The crib encloses a small mattress with high slatted sides.

Etymology
Old English cribbe named a manger or fodder bin. Its later use for a baby's enclosed bed probably arose from frequent references to the manger where the infant Jesus was laid.
In context
the children were asleep when they noticed the house was on fire she ran in to try to get the baby out of the crib