I love these shirts!  All my kids as newborns have worn them nearly non-stop until they grew out of them.  I love that for a newborn, with the side snaps, you don't have to pull clothes on and off over their heads.  At night, I stick a swaddle on them with just the shirt and theres no unsnapping or resnapping for a diaper change.  I also like the built in mittens to cover their hands, if needed.  I had a hard time finding them in stores (and if stores had them, they only had them in white) so Im glad to find them here!