"Known for their baby carriers, BabyBjorn is no stranger to making ergonomic gear, and their 13-pound crib—about half as heavy as traditional portable cribs—fits the back-friendly bill. Don’t worry about a weight limit either: Since the padded mattress is on the ground, this pop-out crib supports babies of all sizes. What’s more, there’s enough room in the carrying bag (which looks something like a giant briefcase) for you to throw in some precious extras, be they stuffed animals, a crib sheet, or beloved blanket."