Our baby uses a bassinet before 3 month.
It fits baby better than a full crib since baby is tiny. Also it can
be rocked. Also it is very light, to move between rooms, and upstairs.
The top part (basket) can be untied to put on the bed, but I did not
use like that. http://www.toysrus.com/product/index.jsp?productId=3997259&002=