Crib questions?

Di • Mama of a precious baby girl born in Oct 2018 👶🏽

Have you transitioned your baby to their crib yet? If so, how old is your baby? Have any of you tried a mesh bumper for their crib? When I get her to nap in her crib, I find her with her legs stuck in the crib slats sometimes and her crying. Thinking of buying one, since it seems like the safer option.