Put baby to sleep beautifully! Our 100% cotton interlock sleep gown is a mother's dream! Designed and manufactured by Silly Phillie in the USA, our classic sleep gown offers comfort, adorable style, and above all practicality for those midnight changes. A sleep gown is an indispensable layette item so you may want to pick up more than one. Newborn size fits baby to approximately 6 mosths of age.