When I was pregnant, I did a lot of research and scoured through lots of lists. Now that my baby is born, I have a better idea of the items which are absolutely necessary, nice-to-have, and those which are more like a want than a need.
*Nice to Have:
I bought a pre-loved one and was skeptical about using it because guidelines recommend that babies sleep on a flat surface but Elise slept SO WELL in the CocoonaBaby. It can only be used for a few months though.