With how often a newborn needs to be changed, the easiest thing to do is dress them in just a onesie and these leg warmers. It's so much easier than messing with the snaps on sleepers every time. These stay on and keep baby warm while you're changing them, instead of leaving them cold from the waste down like a sleeper does. Plus, they are just adorable and super soft! They fit my newborn's skinny legs great from day one.